156698420

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1\times {\mathrm{677}}^1$

素因数の和:920

約数の個数: 48

約数和(自身を含む): 336244608

約数和(自身を除く): 179546188

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 163, 284, 326, 355, 652, 677, 710, 815, 1354, 1420, 1630, 2708, 3260, 3385, 6770, 11573, 13540, 23146, 46292, 48067, 57865, 96134, 110351, 115730, 192268, 220702, 231460, 240335, 441404, 480670, 551755, 961340, 1103510, 2207020, 7834921, 15669842, 31339684, 39174605, 78349210, 156698420]

約数ペア:

[(1, 156698420), (2, 78349210), (4, 39174605), (5, 31339684), (10, 15669842), (20, 7834921), (71, 2207020), (142, 1103510), (163, 961340), (284, 551755), (326, 480670), (355, 441404), (652, 240335), (677, 231460), (710, 220702), (815, 192268), (1354, 115730), (1420, 110351), (1630, 96134), (2708, 57865), (3260, 48067), (3385, 46292), (6770, 23146), (11573, 13540)]