2577940

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{821}}^1$

素因数の和:987

約数の個数: 24

約数和(自身を含む): 5454792

約数和(自身を除く): 2876852

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 821, 1570, 1642, 3140, 3284, 4105, 8210, 16420, 128897, 257794, 515588, 644485, 1288970, 2577940]

約数ペア:

[(1, 2577940), (2, 1288970), (4, 644485), (5, 515588), (10, 257794), (20, 128897), (157, 16420), (314, 8210), (628, 4105), (785, 3284), (821, 3140), (1570, 1642)]