81908450

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{126013}}^1$

素因数の和:126038

約数の個数: 24

約数和(自身を含む): 164070228

約数和(自身を除く): 82161778

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 126013, 252026, 630065, 1260130, 1638169, 3150325, 3276338, 6300650, 8190845, 16381690, 40954225, 81908450]

約数ペア:

[(1, 81908450), (2, 40954225), (5, 16381690), (10, 8190845), (13, 6300650), (25, 3276338), (26, 3150325), (50, 1638169), (65, 1260130), (130, 630065), (325, 252026), (650, 126013)]