420913025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{30119}}^1$

素因数の和:30185

約数の個数: 24

約数和(自身を含む): 575171520

約数和(自身を除く): 154258495

約数列:

[1, 5, 13, 25, 43, 65, 215, 325, 559, 1075, 2795, 13975, 30119, 150595, 391547, 752975, 1295117, 1957735, 6475585, 9788675, 16836521, 32377925, 84182605, 420913025]

約数ペア:

[(1, 420913025), (5, 84182605), (13, 32377925), (25, 16836521), (43, 9788675), (65, 6475585), (215, 1957735), (325, 1295117), (559, 752975), (1075, 391547), (2795, 150595), (13975, 30119)]