19573880

素因数分解:

$2^3\times 5^1\times {\mathrm{571}}^1\times {\mathrm{857}}^1$

素因数の和:1439

約数の個数: 32

約数和(自身を含む): 44169840

約数和(自身を除く): 24595960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 571, 857, 1142, 1714, 2284, 2855, 3428, 4285, 4568, 5710, 6856, 8570, 11420, 17140, 22840, 34280, 489347, 978694, 1957388, 2446735, 3914776, 4893470, 9786940, 19573880]

約数ペア:

[(1, 19573880), (2, 9786940), (4, 4893470), (5, 3914776), (8, 2446735), (10, 1957388), (20, 978694), (40, 489347), (571, 34280), (857, 22840), (1142, 17140), (1714, 11420), (2284, 8570), (2855, 6856), (3428, 5710), (4285, 4568)]