90637090

素因数分解:

$2^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{21529}}^1$

素因数の和:21957

約数の個数: 16

約数和(自身を含む): 163541880

約数和(自身を除く): 72904790

約数列:

[1, 2, 5, 10, 421, 842, 2105, 4210, 21529, 43058, 107645, 215290, 9063709, 18127418, 45318545, 90637090]

約数ペア:

[(1, 90637090), (2, 45318545), (5, 18127418), (10, 9063709), (421, 215290), (842, 107645), (2105, 43058), (4210, 21529)]