690885

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1181}}^1$

素因数の和:1205

約数の個数: 24

約数和(自身を含む): 1290744

約数和(自身を除く): 599859

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 1181, 3543, 5905, 10629, 15353, 17715, 46059, 53145, 76765, 138177, 230295, 690885]

約数ペア:

[(1, 690885), (3, 230295), (5, 138177), (9, 76765), (13, 53145), (15, 46059), (39, 17715), (45, 15353), (65, 10629), (117, 5905), (195, 3543), (585, 1181)]