15990865

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{12641}}^1$

素因数の和:12680

約数の個数: 16

約数和(自身を含む): 21845376

約数和(自身を除く): 5854511

約数列:

[1, 5, 11, 23, 55, 115, 253, 1265, 12641, 63205, 139051, 290743, 695255, 1453715, 3198173, 15990865]

約数ペア:

[(1, 15990865), (5, 3198173), (11, 1453715), (23, 695255), (55, 290743), (115, 139051), (253, 63205), (1265, 12641)]