81880865

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{8317}}^1$

素因数の和:8512

約数の個数: 16

約数和(自身を含む): 107801280

約数和(自身を除く): 25920415

約数列:

[1, 5, 11, 55, 179, 895, 1969, 8317, 9845, 41585, 91487, 457435, 1488743, 7443715, 16376173, 81880865]

約数ペア:

[(1, 81880865), (5, 16376173), (11, 7443715), (55, 1488743), (179, 457435), (895, 91487), (1969, 41585), (8317, 9845)]