68840120

素因数分解:

$2^3\times 5^1\times {\mathrm{1721003}}^1$

素因数の和:1721014

約数の個数: 16

約数和(自身を含む): 154890360

約数和(自身を除く): 86050240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1721003, 3442006, 6884012, 8605015, 13768024, 17210030, 34420060, 68840120]

約数ペア:

[(1, 68840120), (2, 34420060), (4, 17210030), (5, 13768024), (8, 8605015), (10, 6884012), (20, 3442006), (40, 1721003)]