1521325

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:205

約数の個数: 24

約数和(自身を含む): 2110976

約数和(自身を除く): 589651

約数列:

[1, 5, 13, 25, 31, 65, 151, 155, 325, 403, 755, 775, 1963, 2015, 3775, 4681, 9815, 10075, 23405, 49075, 60853, 117025, 304265, 1521325]

約数ペア:

[(1, 1521325), (5, 304265), (13, 117025), (25, 60853), (31, 49075), (65, 23405), (151, 10075), (155, 9815), (325, 4681), (403, 3775), (755, 2015), (775, 1963)]