81178922

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{241}}^1\times {\mathrm{251}}^1$

素因数の和:566

約数の個数: 32

約数和(自身を含む): 136116288

約数和(自身を除く): 54937366

約数列:

[1, 2, 11, 22, 61, 122, 241, 251, 482, 502, 671, 1342, 2651, 2761, 5302, 5522, 14701, 15311, 29402, 30622, 60491, 120982, 161711, 168421, 323422, 336842, 665401, 1330802, 3689951, 7379902, 40589461, 81178922]

約数ペア:

[(1, 81178922), (2, 40589461), (11, 7379902), (22, 3689951), (61, 1330802), (122, 665401), (241, 336842), (251, 323422), (482, 168421), (502, 161711), (671, 120982), (1342, 60491), (2651, 30622), (2761, 29402), (5302, 15311), (5522, 14701)]