3881620

素因数分解:

$2^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{461}}^1$

素因数の和:891

約数の個数: 24

約数和(自身を含む): 8188488

約数和(自身を除く): 4306868

約数列:

[1, 2, 4, 5, 10, 20, 421, 461, 842, 922, 1684, 1844, 2105, 2305, 4210, 4610, 8420, 9220, 194081, 388162, 776324, 970405, 1940810, 3881620]

約数ペア:

[(1, 3881620), (2, 1940810), (4, 970405), (5, 776324), (10, 388162), (20, 194081), (421, 9220), (461, 8420), (842, 4610), (922, 4210), (1684, 2305), (1844, 2105)]