12779390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{499}}^1$

素因数の和:716

約数の個数: 32

約数和(自身を含む): 24948000

約数和(自身を除く): 12168610

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 197, 394, 499, 985, 998, 1970, 2495, 2561, 4990, 5122, 6487, 12805, 12974, 25610, 32435, 64870, 98303, 196606, 491515, 983030, 1277939, 2555878, 6389695, 12779390]

約数ペア:

[(1, 12779390), (2, 6389695), (5, 2555878), (10, 1277939), (13, 983030), (26, 491515), (65, 196606), (130, 98303), (197, 64870), (394, 32435), (499, 25610), (985, 12974), (998, 12805), (1970, 6487), (2495, 5122), (2561, 4990)]