80905510

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{7757}}^1$

素因数の和:7920

約数の個数: 32

約数和(自身を含む): 167572800

約数和(自身を除く): 86667290

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 149, 298, 745, 1043, 1490, 2086, 5215, 7757, 10430, 15514, 38785, 54299, 77570, 108598, 271495, 542990, 1155793, 2311586, 5778965, 8090551, 11557930, 16181102, 40452755, 80905510]

約数ペア:

[(1, 80905510), (2, 40452755), (5, 16181102), (7, 11557930), (10, 8090551), (14, 5778965), (35, 2311586), (70, 1155793), (149, 542990), (298, 271495), (745, 108598), (1043, 77570), (1490, 54299), (2086, 38785), (5215, 15514), (7757, 10430)]