87720615

素因数分解:

$3^2\times 5^1\times {\mathrm{1019}}^1\times {\mathrm{1913}}^1$

素因数の和:2943

約数の個数: 24

約数和(自身を含む): 152277840

約数和(自身を除く): 64557225

約数列:

[1, 3, 5, 9, 15, 45, 1019, 1913, 3057, 5095, 5739, 9171, 9565, 15285, 17217, 28695, 45855, 86085, 1949347, 5848041, 9746735, 17544123, 29240205, 87720615]

約数ペア:

[(1, 87720615), (3, 29240205), (5, 17544123), (9, 9746735), (15, 5848041), (45, 1949347), (1019, 86085), (1913, 45855), (3057, 28695), (5095, 17217), (5739, 15285), (9171, 9565)]