20050004

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{613}}^1$

素因数の和:684

約数の個数: 48

約数和(自身を含む): 41157648

約数和(自身を除く): 21107644

約数列:

[1, 2, 4, 13, 17, 26, 34, 37, 52, 68, 74, 148, 221, 442, 481, 613, 629, 884, 962, 1226, 1258, 1924, 2452, 2516, 7969, 8177, 10421, 15938, 16354, 20842, 22681, 31876, 32708, 41684, 45362, 90724, 135473, 270946, 294853, 385577, 541892, 589706, 771154, 1179412, 1542308, 5012501, 10025002, 20050004]

約数ペア:

[(1, 20050004), (2, 10025002), (4, 5012501), (13, 1542308), (17, 1179412), (26, 771154), (34, 589706), (37, 541892), (52, 385577), (68, 294853), (74, 270946), (148, 135473), (221, 90724), (442, 45362), (481, 41684), (613, 32708), (629, 31876), (884, 22681), (962, 20842), (1226, 16354), (1258, 15938), (1924, 10421), (2452, 8177), (2516, 7969)]