252003505

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{4889}}^1$

素因数の和:4981

約数の個数: 24

約数和(自身を含む): 332891640

約数和(自身を除く): 80888135

約数列:

[1, 5, 13, 61, 65, 169, 305, 793, 845, 3965, 4889, 10309, 24445, 51545, 63557, 298229, 317785, 826241, 1491145, 3876977, 4131205, 19384885, 50400701, 252003505]

約数ペア:

[(1, 252003505), (5, 50400701), (13, 19384885), (61, 4131205), (65, 3876977), (169, 1491145), (305, 826241), (793, 317785), (845, 298229), (3965, 63557), (4889, 51545), (10309, 24445)]