20563240

素因数分解:

$2^3\times 5^1\times {\mathrm{514081}}^1$

素因数の和:514092

約数の個数: 16

約数和(自身を含む): 46267380

約数和(自身を除く): 25704140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 514081, 1028162, 2056324, 2570405, 4112648, 5140810, 10281620, 20563240]

約数ペア:

[(1, 20563240), (2, 10281620), (4, 5140810), (5, 4112648), (8, 2570405), (10, 2056324), (20, 1028162), (40, 514081)]