19877390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{1429}}^1$

素因数の和:1556

約数の個数: 32

約数和(自身を含む): 38918880

約数和(自身を除く): 19041490

約数列:

[1, 2, 5, 10, 13, 26, 65, 107, 130, 214, 535, 1070, 1391, 1429, 2782, 2858, 6955, 7145, 13910, 14290, 18577, 37154, 92885, 152903, 185770, 305806, 764515, 1529030, 1987739, 3975478, 9938695, 19877390]

約数ペア:

[(1, 19877390), (2, 9938695), (5, 3975478), (10, 1987739), (13, 1529030), (26, 764515), (65, 305806), (107, 185770), (130, 152903), (214, 92885), (535, 37154), (1070, 18577), (1391, 14290), (1429, 13910), (2782, 7145), (2858, 6955)]