20656340

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{24019}}^1$

素因数の和:24071

約数の個数: 24

約数和(自身を含む): 44388960

約数和(自身を除く): 23732620

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 24019, 48038, 96076, 120095, 240190, 480380, 1032817, 2065634, 4131268, 5164085, 10328170, 20656340]

約数ペア:

[(1, 20656340), (2, 10328170), (4, 5164085), (5, 4131268), (10, 2065634), (20, 1032817), (43, 480380), (86, 240190), (172, 120095), (215, 96076), (430, 48038), (860, 24019)]