20115190

素因数分解:

$2^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{5171}}^1$

素因数の和:5567

約数の個数: 16

約数和(自身を含む): 36307440

約数和(自身を除く): 16192250

約数列:

[1, 2, 5, 10, 389, 778, 1945, 3890, 5171, 10342, 25855, 51710, 2011519, 4023038, 10057595, 20115190]

約数ペア:

[(1, 20115190), (2, 10057595), (5, 4023038), (10, 2011519), (389, 51710), (778, 25855), (1945, 10342), (3890, 5171)]