40439565

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{20899}}^1$

素因数の和:20953

約数の個数: 24

約数和(自身を含む): 71728800

約数和(自身を除く): 31289235

約数列:

[1, 3, 5, 9, 15, 43, 45, 129, 215, 387, 645, 1935, 20899, 62697, 104495, 188091, 313485, 898657, 940455, 2695971, 4493285, 8087913, 13479855, 40439565]

約数ペア:

[(1, 40439565), (3, 13479855), (5, 8087913), (9, 4493285), (15, 2695971), (43, 940455), (45, 898657), (129, 313485), (215, 188091), (387, 104495), (645, 62697), (1935, 20899)]