81215522

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{179}}^1\times {\mathrm{3719}}^1$

素因数の和:3961

約数の個数: 16

約数和(自身を含む): 124545600

約数和(自身を除く): 43330078

約数列:

[1, 2, 61, 122, 179, 358, 3719, 7438, 10919, 21838, 226859, 453718, 665701, 1331402, 40607761, 81215522]

約数ペア:

[(1, 81215522), (2, 40607761), (61, 1331402), (122, 665701), (179, 453718), (358, 226859), (3719, 21838), (7438, 10919)]