905564080

素因数分解:

$2^4\times 5^1\times {\mathrm{11319551}}^1$

素因数の和:11319564

約数の個数: 20

約数和(自身を含む): 2105436672

約数和(自身を除く): 1199872592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 11319551, 22639102, 45278204, 56597755, 90556408, 113195510, 181112816, 226391020, 452782040, 905564080]

約数ペア:

[(1, 905564080), (2, 452782040), (4, 226391020), (5, 181112816), (8, 113195510), (10, 90556408), (16, 56597755), (20, 45278204), (40, 22639102), (80, 11319551)]