39940540

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{68863}}^1$

素因数の和:68901

約数の個数: 24

約数和(自身を含む): 86768640

約数和(自身を除く): 46828100

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 68863, 137726, 275452, 344315, 688630, 1377260, 1997027, 3994054, 7988108, 9985135, 19970270, 39940540]

約数ペア:

[(1, 39940540), (2, 19970270), (4, 9985135), (5, 7988108), (10, 3994054), (20, 1997027), (29, 1377260), (58, 688630), (116, 344315), (145, 275452), (290, 137726), (580, 68863)]