641534978

素因数分解:

$2^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1\times {\mathrm{3929}}^1$

素因数の和:4154

約数の個数: 32

約数和(自身を含む): 1120521600

約数和(自身を除く): 478986622

約数列:

[1, 2, 7, 14, 107, 109, 214, 218, 749, 763, 1498, 1526, 3929, 7858, 11663, 23326, 27503, 55006, 81641, 163282, 420403, 428261, 840806, 856522, 2942821, 2997827, 5885642, 5995654, 45823927, 91647854, 320767489, 641534978]

約数ペア:

[(1, 641534978), (2, 320767489), (7, 91647854), (14, 45823927), (107, 5995654), (109, 5885642), (214, 2997827), (218, 2942821), (749, 856522), (763, 840806), (1498, 428261), (1526, 420403), (3929, 163282), (7858, 81641), (11663, 55006), (23326, 27503)]