19915696760

素因数分解:

$2^3\times 5^1\times {\mathrm{497892419}}^1$

素因数の和:497892430

約数の個数: 16

約数和(自身を含む): 44810317800

約数和(自身を除く): 24894621040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 497892419, 995784838, 1991569676, 2489462095, 3983139352, 4978924190, 9957848380, 19915696760]

約数ペア:

[(1, 19915696760), (2, 9957848380), (4, 4978924190), (5, 3983139352), (8, 2489462095), (10, 1991569676), (20, 995784838), (40, 497892419)]