85877020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{1637}}^1$

素因数の和:1750

約数の個数: 48

約数和(自身を含む): 187675488

約数和(自身を除く): 101798468

約数列:

[1, 2, 4, 5, 10, 20, 43, 61, 86, 122, 172, 215, 244, 305, 430, 610, 860, 1220, 1637, 2623, 3274, 5246, 6548, 8185, 10492, 13115, 16370, 26230, 32740, 52460, 70391, 99857, 140782, 199714, 281564, 351955, 399428, 499285, 703910, 998570, 1407820, 1997140, 4293851, 8587702, 17175404, 21469255, 42938510, 85877020]

約数ペア:

[(1, 85877020), (2, 42938510), (4, 21469255), (5, 17175404), (10, 8587702), (20, 4293851), (43, 1997140), (61, 1407820), (86, 998570), (122, 703910), (172, 499285), (215, 399428), (244, 351955), (305, 281564), (430, 199714), (610, 140782), (860, 99857), (1220, 70391), (1637, 52460), (2623, 32740), (3274, 26230), (5246, 16370), (6548, 13115), (8185, 10492)]