8400730

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{64621}}^1$

素因数の和:64641

約数の個数: 16

約数和(自身を含む): 16284744

約数和(自身を除く): 7884014

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 64621, 129242, 323105, 646210, 840073, 1680146, 4200365, 8400730]

約数ペア:

[(1, 8400730), (2, 4200365), (5, 1680146), (10, 840073), (13, 646210), (26, 323105), (65, 129242), (130, 64621)]