20540675

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{2843}}^1$

素因数の和:2887

約数の個数: 18

約数和(自身を含む): 27066348

約数和(自身を除く): 6525673

約数列:

[1, 5, 17, 25, 85, 289, 425, 1445, 2843, 7225, 14215, 48331, 71075, 241655, 821627, 1208275, 4108135, 20540675]

約数ペア:

[(1, 20540675), (5, 4108135), (17, 1208275), (25, 821627), (85, 241655), (289, 71075), (425, 48331), (1445, 14215), (2843, 7225)]