28409515

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{997}}^1$

素因数の和:1182

約数の個数: 16

約数和(自身を含む): 35209440

約数和(自身を除く): 6799925

約数列:

[1, 5, 41, 139, 205, 695, 997, 4985, 5699, 28495, 40877, 138583, 204385, 692915, 5681903, 28409515]

約数ペア:

[(1, 28409515), (5, 5681903), (41, 692915), (139, 204385), (205, 138583), (695, 40877), (997, 28495), (4985, 5699)]