18951088640

素因数分解:

$2^9\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1277}}^1$

素因数の和:1359

約数の個数: 320

約数和(自身を含む): 54220243968

約数和(自身を除く): 35269155328

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 31, 32, 34, 40, 44, 55, 62, 64, 68, 80, 85, 88, 110, 124, 128, 136, 155, 160, 170, 176, 187, 220, 248, 256, 272, 310, 320, 340, 341, 352, 374, 440, 496, 512, 527, 544, 620, 640, 680, 682, 704, 748, 880, 935, 992, 1054, 1088, 1240, 1277, 1280, 1360, 1364, 1408, 1496, 1705, 1760, 1870, 1984, 2108, 2176, 2480, 2554, 2560, 2635, 2720, 2728, 2816, 2992, 3410, 3520, 3740, 3968, 4216, 4352, 4960, 5108, 5270, 5440, 5456, 5632, 5797, 5984, 6385, 6820, 7040, 7480, 7936, 8432, 8704, 9920, 10216, 10540, 10880, 10912, 11594, 11968, 12770, 13640, 14047, 14080, 14960, 15872, 16864, 19840, 20432, 21080, 21709, 21760, 21824, 23188, 23936, 25540, 27280, 28094, 28160, 28985, 29920, 33728, 39587, 39680, 40864, 42160, 43418, 43520, 43648, 46376, 47872, 51080, 54560, 56188, 57970, 59840, 67456, 70235, 79174, 79360, 81728, 84320, 86836, 87296, 92752, 95744, 102160, 108545, 109120, 112376, 115940, 119680, 134912, 140470, 158348, 163456, 168640, 173672, 174592, 185504, 197935, 204320, 217090, 218240, 224752, 231880, 238799, 239360, 269824, 280940, 316696, 326912, 337280, 347344, 371008, 395870, 408640, 434180, 435457, 436480, 449504, 463760, 477598, 478720, 561880, 633392, 653824, 672979, 674560, 694688, 742016, 791740, 817280, 868360, 870914, 872960, 899008, 927520, 955196, 1123760, 1193995, 1266784, 1345958, 1349120, 1389376, 1484032, 1583480, 1634560, 1736720, 1741828, 1798016, 1855040, 1910392, 2177285, 2247520, 2387990, 2533568, 2691916, 2778752, 2968064, 3166960, 3269120, 3364895, 3473440, 3483656, 3596032, 3710080, 3820784, 4354570, 4495040, 4775980, 5067136, 5383832, 5557504, 6333920, 6729790, 6946880, 6967312, 7192064, 7402769, 7420160, 7641568, 8709140, 8990080, 9551960, 10134272, 10767664, 11115008, 12667840, 13459580, 13893760, 13934624, 14805538, 14840320, 15283136, 17418280, 17980160, 19103920, 20268544, 21535328, 25335680, 26919160, 27787520, 27869248, 29611076, 30566272, 34836560, 35960320, 37013845, 38207840, 43070656, 50671360, 53838320, 55575040, 55738496, 59222152, 61132544, 69673120, 74027690, 76415680, 86141312, 101342720, 107676640, 111476992, 118444304, 122265088, 139346240, 148055380, 152831360, 172282624, 215353280, 222953984, 236888608, 278692480, 296110760, 305662720, 344565248, 430706560, 473777216, 557384960, 592221520, 611325440, 861413120, 947554432, 1114769920, 1184443040, 1722826240, 1895108864, 2368886080, 3790217728, 4737772160, 9475544320, 18951088640]

約数ペア:

[(1, 18951088640), (2, 9475544320), (4, 4737772160), (5, 3790217728), (8, 2368886080), (10, 1895108864), (11, 1722826240), (16, 1184443040), (17, 1114769920), (20, 947554432), (22, 861413120), (31, 611325440), (32, 592221520), (34, 557384960), (40, 473777216), (44, 430706560), (55, 344565248), (62, 305662720), (64, 296110760), (68, 278692480), (80, 236888608), (85, 222953984), (88, 215353280), (110, 172282624), (124, 152831360), (128, 148055380), (136, 139346240), (155, 122265088), (160, 118444304), (170, 111476992), (176, 107676640), (187, 101342720), (220, 86141312), (248, 76415680), (256, 74027690), (272, 69673120), (310, 61132544), (320, 59222152), (340, 55738496), (341, 55575040), (352, 53838320), (374, 50671360), (440, 43070656), (496, 38207840), (512, 37013845), (527, 35960320), (544, 34836560), (620, 30566272), (640, 29611076), (680, 27869248), (682, 27787520), (704, 26919160), (748, 25335680), (880, 21535328), (935, 20268544), (992, 19103920), (1054, 17980160), (1088, 17418280), (1240, 15283136), (1277, 14840320), (1280, 14805538), (1360, 13934624), (1364, 13893760), (1408, 13459580), (1496, 12667840), (1705, 11115008), (1760, 10767664), (1870, 10134272), (1984, 9551960), (2108, 8990080), (2176, 8709140), (2480, 7641568), (2554, 7420160), (2560, 7402769), (2635, 7192064), (2720, 6967312), (2728, 6946880), (2816, 6729790), (2992, 6333920), (3410, 5557504), (3520, 5383832), (3740, 5067136), (3968, 4775980), (4216, 4495040), (4352, 4354570), (4960, 3820784), (5108, 3710080), (5270, 3596032), (5440, 3483656), (5456, 3473440), (5632, 3364895), (5797, 3269120), (5984, 3166960), (6385, 2968064), (6820, 2778752), (7040, 2691916), (7480, 2533568), (7936, 2387990), (8432, 2247520), (8704, 2177285), (9920, 1910392), (10216, 1855040), (10540, 1798016), (10880, 1741828), (10912, 1736720), (11594, 1634560), (11968, 1583480), (12770, 1484032), (13640, 1389376), (14047, 1349120), (14080, 1345958), (14960, 1266784), (15872, 1193995), (16864, 1123760), (19840, 955196), (20432, 927520), (21080, 899008), (21709, 872960), (21760, 870914), (21824, 868360), (23188, 817280), (23936, 791740), (25540, 742016), (27280, 694688), (28094, 674560), (28160, 672979), (28985, 653824), (29920, 633392), (33728, 561880), (39587, 478720), (39680, 477598), (40864, 463760), (42160, 449504), (43418, 436480), (43520, 435457), (43648, 434180), (46376, 408640), (47872, 395870), (51080, 371008), (54560, 347344), (56188, 337280), (57970, 326912), (59840, 316696), (67456, 280940), (70235, 269824), (79174, 239360), (79360, 238799), (81728, 231880), (84320, 224752), (86836, 218240), (87296, 217090), (92752, 204320), (95744, 197935), (102160, 185504), (108545, 174592), (109120, 173672), (112376, 168640), (115940, 163456), (119680, 158348), (134912, 140470)]