20006740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{76949}}^1$

素因数の和:76971

約数の個数: 24

約数和(自身を含む): 45246600

約数和(自身を除く): 25239860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 76949, 153898, 307796, 384745, 769490, 1000337, 1538980, 2000674, 4001348, 5001685, 10003370, 20006740]

約数ペア:

[(1, 20006740), (2, 10003370), (4, 5001685), (5, 4001348), (10, 2000674), (13, 1538980), (20, 1000337), (26, 769490), (52, 384745), (65, 307796), (130, 153898), (260, 76949)]