18120232

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{277}}^1$

素因数の和:350

約数の個数: 64

約数和(自身を含む): 39931920

約数和(自身を除く): 21811688

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 37, 52, 68, 74, 104, 136, 148, 221, 277, 296, 442, 481, 554, 629, 884, 962, 1108, 1258, 1768, 1924, 2216, 2516, 3601, 3848, 4709, 5032, 7202, 8177, 9418, 10249, 14404, 16354, 18836, 20498, 28808, 32708, 37672, 40996, 61217, 65416, 81992, 122434, 133237, 174233, 244868, 266474, 348466, 489736, 532948, 696932, 1065896, 1393864, 2265029, 4530058, 9060116, 18120232]

約数ペア:

[(1, 18120232), (2, 9060116), (4, 4530058), (8, 2265029), (13, 1393864), (17, 1065896), (26, 696932), (34, 532948), (37, 489736), (52, 348466), (68, 266474), (74, 244868), (104, 174233), (136, 133237), (148, 122434), (221, 81992), (277, 65416), (296, 61217), (442, 40996), (481, 37672), (554, 32708), (629, 28808), (884, 20498), (962, 18836), (1108, 16354), (1258, 14404), (1768, 10249), (1924, 9418), (2216, 8177), (2516, 7202), (3601, 5032), (3848, 4709)]