81232665

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{241}}^1\times {\mathrm{977}}^1$

素因数の和:1249

約数の個数: 32

約数和(自身を含む): 136325376

約数和(自身を除く): 55092711

約数列:

[1, 3, 5, 15, 23, 69, 115, 241, 345, 723, 977, 1205, 2931, 3615, 4885, 5543, 14655, 16629, 22471, 27715, 67413, 83145, 112355, 235457, 337065, 706371, 1177285, 3531855, 5415511, 16246533, 27077555, 81232665]

約数ペア:

[(1, 81232665), (3, 27077555), (5, 16246533), (15, 5415511), (23, 3531855), (69, 1177285), (115, 706371), (241, 337065), (345, 235457), (723, 112355), (977, 83145), (1205, 67413), (2931, 27715), (3615, 22471), (4885, 16629), (5543, 14655)]