81238865

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{2797}}^1$

素因数の和:2996

約数の個数: 16

約数和(自身を含む): 100795152

約数和(自身を除く): 19556287

約数列:

[1, 5, 37, 157, 185, 785, 2797, 5809, 13985, 29045, 103489, 439129, 517445, 2195645, 16247773, 81238865]

約数ペア:

[(1, 81238865), (5, 16247773), (37, 2195645), (157, 517445), (185, 439129), (785, 103489), (2797, 29045), (5809, 13985)]