20902988800

素因数分解:

$2^{10}\times 5^2\times {\mathrm{23}}^1\times {\mathrm{131}}^1\times {\mathrm{271}}^1$

素因数の和:455

約数の個数: 264

約数和(自身を含む): 54680643072

約数和(自身を除く): 33777654272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 32, 40, 46, 50, 64, 80, 92, 100, 115, 128, 131, 160, 184, 200, 230, 256, 262, 271, 320, 368, 400, 460, 512, 524, 542, 575, 640, 655, 736, 800, 920, 1024, 1048, 1084, 1150, 1280, 1310, 1355, 1472, 1600, 1840, 2096, 2168, 2300, 2560, 2620, 2710, 2944, 3013, 3200, 3275, 3680, 4192, 4336, 4600, 5120, 5240, 5420, 5888, 6026, 6233, 6400, 6550, 6775, 7360, 8384, 8672, 9200, 10480, 10840, 11776, 12052, 12466, 12800, 13100, 13550, 14720, 15065, 16768, 17344, 18400, 20960, 21680, 23552, 24104, 24932, 25600, 26200, 27100, 29440, 30130, 31165, 33536, 34688, 35501, 36800, 41920, 43360, 48208, 49864, 52400, 54200, 58880, 60260, 62330, 67072, 69376, 71002, 73600, 75325, 83840, 86720, 96416, 99728, 104800, 108400, 117760, 120520, 124660, 134144, 138752, 142004, 147200, 150650, 155825, 167680, 173440, 177505, 192832, 199456, 209600, 216800, 241040, 249320, 277504, 284008, 294400, 301300, 311650, 335360, 346880, 355010, 385664, 398912, 419200, 433600, 482080, 498640, 568016, 588800, 602600, 623300, 670720, 693760, 710020, 771328, 797824, 816523, 838400, 867200, 887525, 964160, 997280, 1136032, 1205200, 1246600, 1387520, 1420040, 1542656, 1595648, 1633046, 1676800, 1734400, 1775050, 1928320, 1994560, 2272064, 2410400, 2493200, 2840080, 3085312, 3191296, 3266092, 3353600, 3468800, 3550100, 3856640, 3989120, 4082615, 4544128, 4820800, 4986400, 5680160, 6382592, 6532184, 6937600, 7100200, 7713280, 7978240, 8165230, 9088256, 9641600, 9972800, 11360320, 13064368, 14200400, 15426560, 15956480, 16330460, 18176512, 19283200, 19945600, 20413075, 22720640, 26128736, 28400800, 31912960, 32660920, 36353024, 38566400, 39891200, 40826150, 45441280, 52257472, 56801600, 65321840, 77132800, 79782400, 81652300, 90882560, 104514944, 113603200, 130643680, 159564800, 163304600, 181765120, 209029888, 227206400, 261287360, 326609200, 418059776, 454412800, 522574720, 653218400, 836119552, 908825600, 1045149440, 1306436800, 2090298880, 2612873600, 4180597760, 5225747200, 10451494400, 20902988800]

約数ペア:

[(1, 20902988800), (2, 10451494400), (4, 5225747200), (5, 4180597760), (8, 2612873600), (10, 2090298880), (16, 1306436800), (20, 1045149440), (23, 908825600), (25, 836119552), (32, 653218400), (40, 522574720), (46, 454412800), (50, 418059776), (64, 326609200), (80, 261287360), (92, 227206400), (100, 209029888), (115, 181765120), (128, 163304600), (131, 159564800), (160, 130643680), (184, 113603200), (200, 104514944), (230, 90882560), (256, 81652300), (262, 79782400), (271, 77132800), (320, 65321840), (368, 56801600), (400, 52257472), (460, 45441280), (512, 40826150), (524, 39891200), (542, 38566400), (575, 36353024), (640, 32660920), (655, 31912960), (736, 28400800), (800, 26128736), (920, 22720640), (1024, 20413075), (1048, 19945600), (1084, 19283200), (1150, 18176512), (1280, 16330460), (1310, 15956480), (1355, 15426560), (1472, 14200400), (1600, 13064368), (1840, 11360320), (2096, 9972800), (2168, 9641600), (2300, 9088256), (2560, 8165230), (2620, 7978240), (2710, 7713280), (2944, 7100200), (3013, 6937600), (3200, 6532184), (3275, 6382592), (3680, 5680160), (4192, 4986400), (4336, 4820800), (4600, 4544128), (5120, 4082615), (5240, 3989120), (5420, 3856640), (5888, 3550100), (6026, 3468800), (6233, 3353600), (6400, 3266092), (6550, 3191296), (6775, 3085312), (7360, 2840080), (8384, 2493200), (8672, 2410400), (9200, 2272064), (10480, 1994560), (10840, 1928320), (11776, 1775050), (12052, 1734400), (12466, 1676800), (12800, 1633046), (13100, 1595648), (13550, 1542656), (14720, 1420040), (15065, 1387520), (16768, 1246600), (17344, 1205200), (18400, 1136032), (20960, 997280), (21680, 964160), (23552, 887525), (24104, 867200), (24932, 838400), (25600, 816523), (26200, 797824), (27100, 771328), (29440, 710020), (30130, 693760), (31165, 670720), (33536, 623300), (34688, 602600), (35501, 588800), (36800, 568016), (41920, 498640), (43360, 482080), (48208, 433600), (49864, 419200), (52400, 398912), (54200, 385664), (58880, 355010), (60260, 346880), (62330, 335360), (67072, 311650), (69376, 301300), (71002, 294400), (73600, 284008), (75325, 277504), (83840, 249320), (86720, 241040), (96416, 216800), (99728, 209600), (104800, 199456), (108400, 192832), (117760, 177505), (120520, 173440), (124660, 167680), (134144, 155825), (138752, 150650), (142004, 147200)]