86991025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{16649}}^1$

素因数の和:16689

約数の個数: 24

約数和(自身を含む): 123876000

約数和(自身を除く): 36884975

約数列:

[1, 5, 11, 19, 25, 55, 95, 209, 275, 475, 1045, 5225, 16649, 83245, 183139, 316331, 416225, 915695, 1581655, 3479641, 4578475, 7908275, 17398205, 86991025]

約数ペア:

[(1, 86991025), (5, 17398205), (11, 7908275), (19, 4578475), (25, 3479641), (55, 1581655), (95, 915695), (209, 416225), (275, 316331), (475, 183139), (1045, 83245), (5225, 16649)]