20075575

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{277}}^1$

素因数の和:523

約数の個数: 24

約数和(自身を含む): 27026048

約数和(自身を除く): 6950473

約数列:

[1, 5, 13, 25, 65, 223, 277, 325, 1115, 1385, 2899, 3601, 5575, 6925, 14495, 18005, 61771, 72475, 90025, 308855, 803023, 1544275, 4015115, 20075575]

約数ペア:

[(1, 20075575), (5, 4015115), (13, 1544275), (25, 803023), (65, 308855), (223, 90025), (277, 72475), (325, 61771), (1115, 18005), (1385, 14495), (2899, 6925), (3601, 5575)]