20120646940

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{4008097}}^1$

素因数の和:4008357

約数の個数: 24

約数和(自身を含む): 42421709232

約数和(自身を除く): 22301062292

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 2510, 5020, 4008097, 8016194, 16032388, 20040485, 40080970, 80161940, 1006032347, 2012064694, 4024129388, 5030161735, 10060323470, 20120646940]

約数ペア:

[(1, 20120646940), (2, 10060323470), (4, 5030161735), (5, 4024129388), (10, 2012064694), (20, 1006032347), (251, 80161940), (502, 40080970), (1004, 20040485), (1255, 16032388), (2510, 8016194), (5020, 4008097)]