40836560

素因数分解:

$2^4\times 5^1\times {\mathrm{510457}}^1$

素因数の和:510470

約数の個数: 20

約数和(自身を含む): 94945188

約数和(自身を除く): 54108628

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 510457, 1020914, 2041828, 2552285, 4083656, 5104570, 8167312, 10209140, 20418280, 40836560]

約数ペア:

[(1, 40836560), (2, 20418280), (4, 10209140), (5, 8167312), (8, 5104570), (10, 4083656), (16, 2552285), (20, 2041828), (40, 1020914), (80, 510457)]