205878840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{2347}}^1$

素因数の和:2421

約数の個数: 128

約数和(自身を含む): 669461760

約数和(自身を除く): 463582920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 43, 51, 60, 68, 85, 86, 102, 120, 129, 136, 170, 172, 204, 215, 255, 258, 340, 344, 408, 430, 510, 516, 645, 680, 731, 860, 1020, 1032, 1290, 1462, 1720, 2040, 2193, 2347, 2580, 2924, 3655, 4386, 4694, 5160, 5848, 7041, 7310, 8772, 9388, 10965, 11735, 14082, 14620, 17544, 18776, 21930, 23470, 28164, 29240, 35205, 39899, 43860, 46940, 56328, 70410, 79798, 87720, 93880, 100921, 119697, 140820, 159596, 199495, 201842, 239394, 281640, 302763, 319192, 398990, 403684, 478788, 504605, 598485, 605526, 797980, 807368, 957576, 1009210, 1196970, 1211052, 1513815, 1595960, 1715657, 2018420, 2393940, 2422104, 3027630, 3431314, 4036840, 4787880, 5146971, 6055260, 6862628, 8578285, 10293942, 12110520, 13725256, 17156570, 20587884, 25734855, 34313140, 41175768, 51469710, 68626280, 102939420, 205878840]

約数ペア:

[(1, 205878840), (2, 102939420), (3, 68626280), (4, 51469710), (5, 41175768), (6, 34313140), (8, 25734855), (10, 20587884), (12, 17156570), (15, 13725256), (17, 12110520), (20, 10293942), (24, 8578285), (30, 6862628), (34, 6055260), (40, 5146971), (43, 4787880), (51, 4036840), (60, 3431314), (68, 3027630), (85, 2422104), (86, 2393940), (102, 2018420), (120, 1715657), (129, 1595960), (136, 1513815), (170, 1211052), (172, 1196970), (204, 1009210), (215, 957576), (255, 807368), (258, 797980), (340, 605526), (344, 598485), (408, 504605), (430, 478788), (510, 403684), (516, 398990), (645, 319192), (680, 302763), (731, 281640), (860, 239394), (1020, 201842), (1032, 199495), (1290, 159596), (1462, 140820), (1720, 119697), (2040, 100921), (2193, 93880), (2347, 87720), (2580, 79798), (2924, 70410), (3655, 56328), (4386, 46940), (4694, 43860), (5160, 39899), (5848, 35205), (7041, 29240), (7310, 28164), (8772, 23470), (9388, 21930), (10965, 18776), (11735, 17544), (14082, 14620)]