20158390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{287977}}^1$

素因数の和:287991

約数の個数: 16

約数和(自身を含む): 41468832

約数和(自身を除く): 21310442

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 287977, 575954, 1439885, 2015839, 2879770, 4031678, 10079195, 20158390]

約数ペア:

[(1, 20158390), (2, 10079195), (5, 4031678), (7, 2879770), (10, 2015839), (14, 1439885), (35, 575954), (70, 287977)]