87172355

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{6971}}^1$

素因数の和:7078

約数の個数: 16

約数和(自身を含む): 108930528

約数和(自身を除く): 21758173

約数列:

[1, 5, 41, 61, 205, 305, 2501, 6971, 12505, 34855, 285811, 425231, 1429055, 2126155, 17434471, 87172355]

約数ペア:

[(1, 87172355), (5, 17434471), (41, 2126155), (61, 1429055), (205, 425231), (305, 285811), (2501, 34855), (6971, 12505)]