66765680

素因数分解:

$2^4\times 5^1\times {\mathrm{834571}}^1$

素因数の和:834584

約数の個数: 20

約数和(自身を含む): 155230392

約数和(自身を除く): 88464712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 834571, 1669142, 3338284, 4172855, 6676568, 8345710, 13353136, 16691420, 33382840, 66765680]

約数ペア:

[(1, 66765680), (2, 33382840), (4, 16691420), (5, 13353136), (8, 8345710), (10, 6676568), (16, 4172855), (20, 3338284), (40, 1669142), (80, 834571)]