80821870

素因数分解:

$2^1\times 5^1\times {\mathrm{2503}}^1\times {\mathrm{3229}}^1$

素因数の和:5739

約数の個数: 16

約数和(自身を含む): 145582560

約数和(自身を除く): 64760690

約数列:

[1, 2, 5, 10, 2503, 3229, 5006, 6458, 12515, 16145, 25030, 32290, 8082187, 16164374, 40410935, 80821870]

約数ペア:

[(1, 80821870), (2, 40410935), (5, 16164374), (10, 8082187), (2503, 32290), (3229, 25030), (5006, 16145), (6458, 12515)]