66991745

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{2351}}^1$

素因数の和:2536

約数の個数: 16

約数和(自身を含む): 82978560

約数和(自身を除く): 15986815

約数列:

[1, 5, 41, 139, 205, 695, 2351, 5699, 11755, 28495, 96391, 326789, 481955, 1633945, 13398349, 66991745]

約数ペア:

[(1, 66991745), (5, 13398349), (41, 1633945), (139, 481955), (205, 326789), (695, 96391), (2351, 28495), (5699, 11755)]