28217150

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43411}}^1$

素因数の和:43436

約数の個数: 24

約数和(自身を含む): 56522424

約数和(自身を除く): 28305274

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 43411, 86822, 217055, 434110, 564343, 1085275, 1128686, 2170550, 2821715, 5643430, 14108575, 28217150]

約数ペア:

[(1, 28217150), (2, 14108575), (5, 5643430), (10, 2821715), (13, 2170550), (25, 1128686), (26, 1085275), (50, 564343), (65, 434110), (130, 217055), (325, 86822), (650, 43411)]