20485940

素因数分解:

$2^2\times 5^1\times {\mathrm{367}}^1\times {\mathrm{2791}}^1$

素因数の和:3167

約数の個数: 24

約数和(自身を含む): 43153152

約数和(自身を除く): 22667212

約数列:

[1, 2, 4, 5, 10, 20, 367, 734, 1468, 1835, 2791, 3670, 5582, 7340, 11164, 13955, 27910, 55820, 1024297, 2048594, 4097188, 5121485, 10242970, 20485940]

約数ペア:

[(1, 20485940), (2, 10242970), (4, 5121485), (5, 4097188), (10, 2048594), (20, 1024297), (367, 55820), (734, 27910), (1468, 13955), (1835, 11164), (2791, 7340), (3670, 5582)]