19915360

素因数分解:

$2^5\times 5^1\times {\mathrm{124471}}^1$

素因数の和:124486

約数の個数: 24

約数和(自身を含む): 47050416

約数和(自身を除く): 27135056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 124471, 248942, 497884, 622355, 995768, 1244710, 1991536, 2489420, 3983072, 4978840, 9957680, 19915360]

約数ペア:

[(1, 19915360), (2, 9957680), (4, 4978840), (5, 3983072), (8, 2489420), (10, 1991536), (16, 1244710), (20, 995768), (32, 622355), (40, 497884), (80, 248942), (160, 124471)]