81656415

素因数分解:

$3^2\times 5^1\times {\mathrm{809}}^1\times {\mathrm{2243}}^1$

素因数の和:3063

約数の個数: 24

約数和(自身を含む): 141775920

約数和(自身を除く): 60119505

約数列:

[1, 3, 5, 9, 15, 45, 809, 2243, 2427, 4045, 6729, 7281, 11215, 12135, 20187, 33645, 36405, 100935, 1814587, 5443761, 9072935, 16331283, 27218805, 81656415]

約数ペア:

[(1, 81656415), (3, 27218805), (5, 16331283), (9, 9072935), (15, 5443761), (45, 1814587), (809, 100935), (2243, 36405), (2427, 33645), (4045, 20187), (6729, 12135), (7281, 11215)]