21687500800

素因数分解:

$2^{16}\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:141

約数の個数: 408

約数和(自身を含む): 64491126272

約数和(自身を除く): 42803625472

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 31, 32, 35, 40, 50, 56, 61, 62, 64, 70, 80, 100, 112, 122, 124, 128, 140, 155, 160, 175, 200, 217, 224, 244, 248, 256, 280, 305, 310, 320, 350, 400, 427, 434, 448, 488, 496, 512, 560, 610, 620, 640, 700, 775, 800, 854, 868, 896, 976, 992, 1024, 1085, 1120, 1220, 1240, 1280, 1400, 1525, 1550, 1600, 1708, 1736, 1792, 1891, 1952, 1984, 2048, 2135, 2170, 2240, 2440, 2480, 2560, 2800, 3050, 3100, 3200, 3416, 3472, 3584, 3782, 3904, 3968, 4096, 4270, 4340, 4480, 4880, 4960, 5120, 5425, 5600, 6100, 6200, 6400, 6832, 6944, 7168, 7564, 7808, 7936, 8192, 8540, 8680, 8960, 9455, 9760, 9920, 10240, 10675, 10850, 11200, 12200, 12400, 12800, 13237, 13664, 13888, 14336, 15128, 15616, 15872, 16384, 17080, 17360, 17920, 18910, 19520, 19840, 20480, 21350, 21700, 22400, 24400, 24800, 25600, 26474, 27328, 27776, 28672, 30256, 31232, 31744, 32768, 34160, 34720, 35840, 37820, 39040, 39680, 40960, 42700, 43400, 44800, 47275, 48800, 49600, 51200, 52948, 54656, 55552, 57344, 60512, 62464, 63488, 65536, 66185, 68320, 69440, 71680, 75640, 78080, 79360, 81920, 85400, 86800, 89600, 94550, 97600, 99200, 102400, 105896, 109312, 111104, 114688, 121024, 124928, 126976, 132370, 136640, 138880, 143360, 151280, 156160, 158720, 163840, 170800, 173600, 179200, 189100, 195200, 198400, 204800, 211792, 218624, 222208, 229376, 242048, 249856, 253952, 264740, 273280, 277760, 286720, 302560, 312320, 317440, 327680, 330925, 341600, 347200, 358400, 378200, 390400, 396800, 409600, 423584, 437248, 444416, 458752, 484096, 499712, 507904, 529480, 546560, 555520, 573440, 605120, 624640, 634880, 661850, 683200, 694400, 716800, 756400, 780800, 793600, 819200, 847168, 874496, 888832, 968192, 999424, 1015808, 1058960, 1093120, 1111040, 1146880, 1210240, 1249280, 1269760, 1323700, 1366400, 1388800, 1433600, 1512800, 1561600, 1587200, 1638400, 1694336, 1748992, 1777664, 1936384, 1998848, 2031616, 2117920, 2186240, 2222080, 2293760, 2420480, 2498560, 2539520, 2647400, 2732800, 2777600, 2867200, 3025600, 3123200, 3174400, 3388672, 3497984, 3555328, 3872768, 3997696, 4235840, 4372480, 4444160, 4840960, 4997120, 5079040, 5294800, 5465600, 5555200, 5734400, 6051200, 6246400, 6348800, 6777344, 6995968, 7110656, 7745536, 8471680, 8744960, 8888320, 9681920, 9994240, 10158080, 10589600, 10931200, 11110400, 11468800, 12102400, 12492800, 12697600, 13554688, 13991936, 14221312, 15491072, 16943360, 17489920, 17776640, 19363840, 19988480, 21179200, 21862400, 22220800, 24204800, 24985600, 25395200, 27109376, 27983872, 30982144, 33886720, 34979840, 35553280, 38727680, 42358400, 43724800, 44441600, 48409600, 49971200, 50790400, 54218752, 61964288, 67773440, 69959680, 71106560, 77455360, 84716800, 87449600, 88883200, 96819200, 99942400, 108437504, 123928576, 135546880, 139919360, 154910720, 169433600, 174899200, 177766400, 193638400, 216875008, 271093760, 309821440, 338867200, 349798400, 355532800, 387276800, 433750016, 542187520, 619642880, 677734400, 699596800, 774553600, 867500032, 1084375040, 1355468800, 1549107200, 2168750080, 2710937600, 3098214400, 4337500160, 5421875200, 10843750400, 21687500800]

約数ペア:

[(1, 21687500800), (2, 10843750400), (4, 5421875200), (5, 4337500160), (7, 3098214400), (8, 2710937600), (10, 2168750080), (14, 1549107200), (16, 1355468800), (20, 1084375040), (25, 867500032), (28, 774553600), (31, 699596800), (32, 677734400), (35, 619642880), (40, 542187520), (50, 433750016), (56, 387276800), (61, 355532800), (62, 349798400), (64, 338867200), (70, 309821440), (80, 271093760), (100, 216875008), (112, 193638400), (122, 177766400), (124, 174899200), (128, 169433600), (140, 154910720), (155, 139919360), (160, 135546880), (175, 123928576), (200, 108437504), (217, 99942400), (224, 96819200), (244, 88883200), (248, 87449600), (256, 84716800), (280, 77455360), (305, 71106560), (310, 69959680), (320, 67773440), (350, 61964288), (400, 54218752), (427, 50790400), (434, 49971200), (448, 48409600), (488, 44441600), (496, 43724800), (512, 42358400), (560, 38727680), (610, 35553280), (620, 34979840), (640, 33886720), (700, 30982144), (775, 27983872), (800, 27109376), (854, 25395200), (868, 24985600), (896, 24204800), (976, 22220800), (992, 21862400), (1024, 21179200), (1085, 19988480), (1120, 19363840), (1220, 17776640), (1240, 17489920), (1280, 16943360), (1400, 15491072), (1525, 14221312), (1550, 13991936), (1600, 13554688), (1708, 12697600), (1736, 12492800), (1792, 12102400), (1891, 11468800), (1952, 11110400), (1984, 10931200), (2048, 10589600), (2135, 10158080), (2170, 9994240), (2240, 9681920), (2440, 8888320), (2480, 8744960), (2560, 8471680), (2800, 7745536), (3050, 7110656), (3100, 6995968), (3200, 6777344), (3416, 6348800), (3472, 6246400), (3584, 6051200), (3782, 5734400), (3904, 5555200), (3968, 5465600), (4096, 5294800), (4270, 5079040), (4340, 4997120), (4480, 4840960), (4880, 4444160), (4960, 4372480), (5120, 4235840), (5425, 3997696), (5600, 3872768), (6100, 3555328), (6200, 3497984), (6400, 3388672), (6832, 3174400), (6944, 3123200), (7168, 3025600), (7564, 2867200), (7808, 2777600), (7936, 2732800), (8192, 2647400), (8540, 2539520), (8680, 2498560), (8960, 2420480), (9455, 2293760), (9760, 2222080), (9920, 2186240), (10240, 2117920), (10675, 2031616), (10850, 1998848), (11200, 1936384), (12200, 1777664), (12400, 1748992), (12800, 1694336), (13237, 1638400), (13664, 1587200), (13888, 1561600), (14336, 1512800), (15128, 1433600), (15616, 1388800), (15872, 1366400), (16384, 1323700), (17080, 1269760), (17360, 1249280), (17920, 1210240), (18910, 1146880), (19520, 1111040), (19840, 1093120), (20480, 1058960), (21350, 1015808), (21700, 999424), (22400, 968192), (24400, 888832), (24800, 874496), (25600, 847168), (26474, 819200), (27328, 793600), (27776, 780800), (28672, 756400), (30256, 716800), (31232, 694400), (31744, 683200), (32768, 661850), (34160, 634880), (34720, 624640), (35840, 605120), (37820, 573440), (39040, 555520), (39680, 546560), (40960, 529480), (42700, 507904), (43400, 499712), (44800, 484096), (47275, 458752), (48800, 444416), (49600, 437248), (51200, 423584), (52948, 409600), (54656, 396800), (55552, 390400), (57344, 378200), (60512, 358400), (62464, 347200), (63488, 341600), (65536, 330925), (66185, 327680), (68320, 317440), (69440, 312320), (71680, 302560), (75640, 286720), (78080, 277760), (79360, 273280), (81920, 264740), (85400, 253952), (86800, 249856), (89600, 242048), (94550, 229376), (97600, 222208), (99200, 218624), (102400, 211792), (105896, 204800), (109312, 198400), (111104, 195200), (114688, 189100), (121024, 179200), (124928, 173600), (126976, 170800), (132370, 163840), (136640, 158720), (138880, 156160), (143360, 151280)]