40289020

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{17827}}^1$

素因数の和:17949

約数の個数: 24

約数和(自身を含む): 85360464

約数和(自身を除く): 45071444

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 17827, 35654, 71308, 89135, 178270, 356540, 2014451, 4028902, 8057804, 10072255, 20144510, 40289020]

約数ペア:

[(1, 40289020), (2, 20144510), (4, 10072255), (5, 8057804), (10, 4028902), (20, 2014451), (113, 356540), (226, 178270), (452, 89135), (565, 71308), (1130, 35654), (2260, 17827)]