1561125

素因数分解:

$3^1\times 5^3\times {\mathrm{23}}^1\times {\mathrm{181}}^1$

素因数の和:222

約数の個数: 32

約数和(自身を含む): 2725632

約数和(自身を除く): 1164507

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 115, 125, 181, 345, 375, 543, 575, 905, 1725, 2715, 2875, 4163, 4525, 8625, 12489, 13575, 20815, 22625, 62445, 67875, 104075, 312225, 520375, 1561125]

約数ペア:

[(1, 1561125), (3, 520375), (5, 312225), (15, 104075), (23, 67875), (25, 62445), (69, 22625), (75, 20815), (115, 13575), (125, 12489), (181, 8625), (345, 4525), (375, 4163), (543, 2875), (575, 2715), (905, 1725)]