68419880

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{39779}}^1$

素因数の和:39833

約数の個数: 32

約数和(自身を含む): 157528800

約数和(自身を除く): 89108920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 39779, 79558, 159116, 198895, 318232, 397790, 795580, 1591160, 1710497, 3420994, 6841988, 8552485, 13683976, 17104970, 34209940, 68419880]

約数ペア:

[(1, 68419880), (2, 34209940), (4, 17104970), (5, 13683976), (8, 8552485), (10, 6841988), (20, 3420994), (40, 1710497), (43, 1591160), (86, 795580), (172, 397790), (215, 318232), (344, 198895), (430, 159116), (860, 79558), (1720, 39779)]