15520375

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{9551}}^1$

素因数の和:9579

約数の個数: 16

約数和(自身を含む): 20861568

約数和(自身を除く): 5341193

約数列:

[1, 5, 13, 25, 65, 125, 325, 1625, 9551, 47755, 124163, 238775, 620815, 1193875, 3104075, 15520375]

約数ペア:

[(1, 15520375), (5, 3104075), (13, 1193875), (25, 620815), (65, 238775), (125, 124163), (325, 47755), (1625, 9551)]