25440580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{587}}^1$

素因数の和:804

約数の個数: 48

約数和(自身を含む): 58677696

約数和(自身を除く): 33237116

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 197, 220, 394, 587, 788, 985, 1174, 1970, 2167, 2348, 2935, 3940, 4334, 5870, 6457, 8668, 10835, 11740, 12914, 21670, 25828, 32285, 43340, 64570, 115639, 129140, 231278, 462556, 578195, 1156390, 1272029, 2312780, 2544058, 5088116, 6360145, 12720290, 25440580]

約数ペア:

[(1, 25440580), (2, 12720290), (4, 6360145), (5, 5088116), (10, 2544058), (11, 2312780), (20, 1272029), (22, 1156390), (44, 578195), (55, 462556), (110, 231278), (197, 129140), (220, 115639), (394, 64570), (587, 43340), (788, 32285), (985, 25828), (1174, 21670), (1970, 12914), (2167, 11740), (2348, 10835), (2935, 8668), (3940, 6457), (4334, 5870)]