28290275

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1427}}^1$

素因数の和:1511

約数の個数: 24

約数和(自身を含む): 38424624

約数和(自身を除く): 10134349

約数列:

[1, 5, 13, 25, 61, 65, 305, 325, 793, 1427, 1525, 3965, 7135, 18551, 19825, 35675, 87047, 92755, 435235, 463775, 1131611, 2176175, 5658055, 28290275]

約数ペア:

[(1, 28290275), (5, 5658055), (13, 2176175), (25, 1131611), (61, 463775), (65, 435235), (305, 92755), (325, 87047), (793, 35675), (1427, 19825), (1525, 18551), (3965, 7135)]