28192420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{34381}}^1$

素因数の和:34431

約数の個数: 24

約数和(自身を含む): 60649848

約数和(自身を除く): 32457428

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 34381, 68762, 137524, 171905, 343810, 687620, 1409621, 2819242, 5638484, 7048105, 14096210, 28192420]

約数ペア:

[(1, 28192420), (2, 14096210), (4, 7048105), (5, 5638484), (10, 2819242), (20, 1409621), (41, 687620), (82, 343810), (164, 171905), (205, 137524), (410, 68762), (820, 34381)]