2000407540

素因数分解:

$2^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{154591}}^1$

素因数の和:155247

約数の個数: 24

約数和(自身を含む): 4207375872

約数和(自身を除く): 2206968332

約数列:

[1, 2, 4, 5, 10, 20, 647, 1294, 2588, 3235, 6470, 12940, 154591, 309182, 618364, 772955, 1545910, 3091820, 100020377, 200040754, 400081508, 500101885, 1000203770, 2000407540]

約数ペア:

[(1, 2000407540), (2, 1000203770), (4, 500101885), (5, 400081508), (10, 200040754), (20, 100020377), (647, 3091820), (1294, 1545910), (2588, 772955), (3235, 618364), (6470, 309182), (12940, 154591)]