20010325

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{409}}^1$

素因数の和:541

約数の個数: 24

約数和(自身を含む): 26436800

約数和(自身を除く): 6426475

約数列:

[1, 5, 19, 25, 95, 103, 409, 475, 515, 1957, 2045, 2575, 7771, 9785, 10225, 38855, 42127, 48925, 194275, 210635, 800413, 1053175, 4002065, 20010325]

約数ペア:

[(1, 20010325), (5, 4002065), (19, 1053175), (25, 800413), (95, 210635), (103, 194275), (409, 48925), (475, 42127), (515, 38855), (1957, 10225), (2045, 9785), (2575, 7771)]