2012385940

素因数分解:

$2^2\times 5^1\times {\mathrm{821}}^1\times {\mathrm{122557}}^1$

素因数の和:123387

約数の個数: 24

約数和(自身を含む): 4231192392

約数和(自身を除く): 2218806452

約数列:

[1, 2, 4, 5, 10, 20, 821, 1642, 3284, 4105, 8210, 16420, 122557, 245114, 490228, 612785, 1225570, 2451140, 100619297, 201238594, 402477188, 503096485, 1006192970, 2012385940]

約数ペア:

[(1, 2012385940), (2, 1006192970), (4, 503096485), (5, 402477188), (10, 201238594), (20, 100619297), (821, 2451140), (1642, 1225570), (3284, 612785), (4105, 490228), (8210, 245114), (16420, 122557)]