90197015

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{443}}^1\times {\mathrm{947}}^1$

素因数の和:1438

約数の個数: 16

約数和(自身を含む): 111120768

約数和(自身を除く): 20923753

約数列:

[1, 5, 43, 215, 443, 947, 2215, 4735, 19049, 40721, 95245, 203605, 419521, 2097605, 18039403, 90197015]

約数ペア:

[(1, 90197015), (5, 18039403), (43, 2097605), (215, 419521), (443, 203605), (947, 95245), (2215, 40721), (4735, 19049)]