258915

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{421}}^1$

素因数の和:470

約数の個数: 16

約数和(自身を含む): 425376

約数和(自身を除く): 166461

約数列:

[1, 3, 5, 15, 41, 123, 205, 421, 615, 1263, 2105, 6315, 17261, 51783, 86305, 258915]

約数ペア:

[(1, 258915), (3, 86305), (5, 51783), (15, 17261), (41, 6315), (123, 2105), (205, 1263), (421, 615)]