4991655

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:231

約数の個数: 32

約数和(自身を含む): 8363520

約数和(自身を除く): 3371865

約数列:

[1, 3, 5, 15, 43, 71, 109, 129, 213, 215, 327, 355, 545, 645, 1065, 1635, 3053, 4687, 7739, 9159, 14061, 15265, 23217, 23435, 38695, 45795, 70305, 116085, 332777, 998331, 1663885, 4991655]

約数ペア:

[(1, 4991655), (3, 1663885), (5, 998331), (15, 332777), (43, 116085), (71, 70305), (109, 45795), (129, 38695), (213, 23435), (215, 23217), (327, 15265), (355, 14061), (545, 9159), (645, 7739), (1065, 4687), (1635, 3053)]