20111240

素因数分解:

$2^3\times 5^1\times {\mathrm{502781}}^1$

素因数の和:502792

約数の個数: 16

約数和(自身を含む): 45250380

約数和(自身を除く): 25139140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 502781, 1005562, 2011124, 2513905, 4022248, 5027810, 10055620, 20111240]

約数ペア:

[(1, 20111240), (2, 10055620), (4, 5027810), (5, 4022248), (8, 2513905), (10, 2011124), (20, 1005562), (40, 502781)]