90905915

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1\times {\mathrm{1571}}^1$

素因数の和:1810

約数の個数: 16

約数和(自身を含む): 111373056

約数和(自身を除く): 20467141

約数列:

[1, 5, 71, 163, 355, 815, 1571, 7855, 11573, 57865, 111541, 256073, 557705, 1280365, 18181183, 90905915]

約数ペア:

[(1, 90905915), (5, 18181183), (71, 1280365), (163, 557705), (355, 256073), (815, 111541), (1571, 57865), (7855, 11573)]