28557825

素因数分解:

$3^1\times 5^2\times {\mathrm{503}}^1\times {\mathrm{757}}^1$

素因数の和:1273

約数の個数: 24

約数和(自身を含む): 47371968

約数和(自身を除く): 18814143

約数列:

[1, 3, 5, 15, 25, 75, 503, 757, 1509, 2271, 2515, 3785, 7545, 11355, 12575, 18925, 37725, 56775, 380771, 1142313, 1903855, 5711565, 9519275, 28557825]

約数ペア:

[(1, 28557825), (3, 9519275), (5, 5711565), (15, 1903855), (25, 1142313), (75, 380771), (503, 56775), (757, 37725), (1509, 18925), (2271, 12575), (2515, 11355), (3785, 7545)]