900080

素因数分解:

$2^4\times 5^1\times {\mathrm{11251}}^1$

素因数の和:11264

約数の個数: 20

約数和(自身を含む): 2092872

約数和(自身を除く): 1192792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 11251, 22502, 45004, 56255, 90008, 112510, 180016, 225020, 450040, 900080]

約数ペア:

[(1, 900080), (2, 450040), (4, 225020), (5, 180016), (8, 112510), (10, 90008), (16, 56255), (20, 45004), (40, 22502), (80, 11251)]