2558480

素因数分解:

$2^4\times 5^1\times {\mathrm{31981}}^1$

素因数の和:31994

約数の個数: 20

約数和(自身を含む): 5948652

約数和(自身を除く): 3390172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 31981, 63962, 127924, 159905, 255848, 319810, 511696, 639620, 1279240, 2558480]

約数ペア:

[(1, 2558480), (2, 1279240), (4, 639620), (5, 511696), (8, 319810), (10, 255848), (16, 159905), (20, 127924), (40, 63962), (80, 31981)]