77220980

素因数分解:

$2^2\times 5^1\times {\mathrm{1091}}^1\times {\mathrm{3539}}^1$

素因数の和:4639

約数の個数: 24

約数和(自身を含む): 162358560

約数和(自身を除く): 85137580

約数列:

[1, 2, 4, 5, 10, 20, 1091, 2182, 3539, 4364, 5455, 7078, 10910, 14156, 17695, 21820, 35390, 70780, 3861049, 7722098, 15444196, 19305245, 38610490, 77220980]

約数ペア:

[(1, 77220980), (2, 38610490), (4, 19305245), (5, 15444196), (10, 7722098), (20, 3861049), (1091, 70780), (2182, 35390), (3539, 21820), (4364, 17695), (5455, 14156), (7078, 10910)]