81766395

素因数分解:

$3^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{4421}}^1$

素因数の和:4572

約数の個数: 32

約数和(自身を含む): 146456640

約数和(自身を除く): 64690245

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 137, 411, 685, 1233, 2055, 3699, 4421, 6165, 13263, 18495, 22105, 39789, 66315, 119367, 198945, 596835, 605677, 1817031, 3028385, 5451093, 9085155, 16353279, 27255465, 81766395]

約数ペア:

[(1, 81766395), (3, 27255465), (5, 16353279), (9, 9085155), (15, 5451093), (27, 3028385), (45, 1817031), (135, 605677), (137, 596835), (411, 198945), (685, 119367), (1233, 66315), (2055, 39789), (3699, 22105), (4421, 18495), (6165, 13263)]