2668319540

素因数分解:

$2^2\times 5^1\times {\mathrm{133415977}}^1$

素因数の和:133415986

約数の個数: 12

約数和(自身を含む): 5603471076

約数和(自身を除く): 2935151536

約数列:

[1, 2, 4, 5, 10, 20, 133415977, 266831954, 533663908, 667079885, 1334159770, 2668319540]

約数ペア:

[(1, 2668319540), (2, 1334159770), (4, 667079885), (5, 533663908), (10, 266831954), (20, 133415977)]