89873660

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{10987}}^1$

素因数の和:11405

約数の個数: 24

約数和(自身を含む): 189213360

約数和(自身を除く): 99339700

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 4090, 8180, 10987, 21974, 43948, 54935, 109870, 219740, 4493683, 8987366, 17974732, 22468415, 44936830, 89873660]

約数ペア:

[(1, 89873660), (2, 44936830), (4, 22468415), (5, 17974732), (10, 8987366), (20, 4493683), (409, 219740), (818, 109870), (1636, 54935), (2045, 43948), (4090, 21974), (8180, 10987)]