1678480

素因数分解:

$2^4\times 5^1\times {\mathrm{20981}}^1$

素因数の和:20994

約数の個数: 20

約数和(自身を含む): 3902652

約数和(自身を除く): 2224172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 20981, 41962, 83924, 104905, 167848, 209810, 335696, 419620, 839240, 1678480]

約数ペア:

[(1, 1678480), (2, 839240), (4, 419620), (5, 335696), (8, 209810), (10, 167848), (16, 104905), (20, 83924), (40, 41962), (80, 20981)]