2697725

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{61}}^2$

素因数の和:161

約数の個数: 18

約数和(自身を含む): 3518190

約数和(自身を除く): 820465

約数列:

[1, 5, 25, 29, 61, 145, 305, 725, 1525, 1769, 3721, 8845, 18605, 44225, 93025, 107909, 539545, 2697725]

約数ペア:

[(1, 2697725), (5, 539545), (25, 107909), (29, 93025), (61, 44225), (145, 18605), (305, 8845), (725, 3721), (1525, 1769)]