289507640

素因数分解:

$2^3\times 5^1\times {\mathrm{613}}^1\times {\mathrm{11807}}^1$

素因数の和:12431

約数の個数: 32

約数和(自身を含む): 652510080

約数和(自身を除く): 363002440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 613, 1226, 2452, 3065, 4904, 6130, 11807, 12260, 23614, 24520, 47228, 59035, 94456, 118070, 236140, 472280, 7237691, 14475382, 28950764, 36188455, 57901528, 72376910, 144753820, 289507640]

約数ペア:

[(1, 289507640), (2, 144753820), (4, 72376910), (5, 57901528), (8, 36188455), (10, 28950764), (20, 14475382), (40, 7237691), (613, 472280), (1226, 236140), (2452, 118070), (3065, 94456), (4904, 59035), (6130, 47228), (11807, 24520), (12260, 23614)]