20444080

素因数分解:

$2^4\times 5^1\times {\mathrm{255551}}^1$

素因数の和:255564

約数の個数: 20

約数和(自身を含む): 47532672

約数和(自身を除く): 27088592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 255551, 511102, 1022204, 1277755, 2044408, 2555510, 4088816, 5111020, 10222040, 20444080]

約数ペア:

[(1, 20444080), (2, 10222040), (4, 5111020), (5, 4088816), (8, 2555510), (10, 2044408), (16, 1277755), (20, 1022204), (40, 511102), (80, 255551)]