20244936725

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{154571}}^1$

素因数の和:154638

約数の個数: 36

約数和(自身を含む): 28060382592

約数和(自身を除く): 7815445867

約数列:

[1, 5, 13, 25, 31, 65, 155, 169, 325, 403, 775, 845, 2015, 4225, 5239, 10075, 26195, 130975, 154571, 772855, 2009423, 3864275, 4791701, 10047115, 23958505, 26122499, 50235575, 62292113, 119792525, 130612495, 311460565, 653062475, 809797469, 1557302825, 4048987345, 20244936725]

約数ペア:

[(1, 20244936725), (5, 4048987345), (13, 1557302825), (25, 809797469), (31, 653062475), (65, 311460565), (155, 130612495), (169, 119792525), (325, 62292113), (403, 50235575), (775, 26122499), (845, 23958505), (2015, 10047115), (4225, 4791701), (5239, 3864275), (10075, 2009423), (26195, 772855), (130975, 154571)]