20105625

素因数分解:

$3^1\times 5^4\times {\mathrm{10723}}^1$

素因数の和:10746

約数の個数: 20

約数和(自身を含む): 33501776

約数和(自身を除く): 13396151

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 625, 1875, 10723, 32169, 53615, 160845, 268075, 804225, 1340375, 4021125, 6701875, 20105625]

約数ペア:

[(1, 20105625), (3, 6701875), (5, 4021125), (15, 1340375), (25, 804225), (75, 268075), (125, 160845), (375, 53615), (625, 32169), (1875, 10723)]