87492220

素因数分解:

$2^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{10391}}^1$

素因数の和:10821

約数の個数: 24

約数和(自身を含む): 184187808

約数和(自身を除く): 96695588

約数列:

[1, 2, 4, 5, 10, 20, 421, 842, 1684, 2105, 4210, 8420, 10391, 20782, 41564, 51955, 103910, 207820, 4374611, 8749222, 17498444, 21873055, 43746110, 87492220]

約数ペア:

[(1, 87492220), (2, 43746110), (4, 21873055), (5, 17498444), (10, 8749222), (20, 4374611), (421, 207820), (842, 103910), (1684, 51955), (2105, 41564), (4210, 20782), (8420, 10391)]