9988225

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{421}}^1$

素因数の和:517

約数の個数: 24

約数和(自身を含む): 13552952

約数和(自身を除く): 3564727

約数列:

[1, 5, 13, 25, 65, 73, 325, 365, 421, 949, 1825, 2105, 4745, 5473, 10525, 23725, 27365, 30733, 136825, 153665, 399529, 768325, 1997645, 9988225]

約数ペア:

[(1, 9988225), (5, 1997645), (13, 768325), (25, 399529), (65, 153665), (73, 136825), (325, 30733), (365, 27365), (421, 23725), (949, 10525), (1825, 5473), (2105, 4745)]