20260642900

素因数分解:

$2^2\times 5^2\times {\mathrm{317}}^1\times {\mathrm{639137}}^1$

素因数の和:639468

約数の個数: 36

約数和(自身を含む): 44104356828

約数和(自身を除く): 23843713928

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 317, 634, 1268, 1585, 3170, 6340, 7925, 15850, 31700, 639137, 1278274, 2556548, 3195685, 6391370, 12782740, 15978425, 31956850, 63913700, 202606429, 405212858, 810425716, 1013032145, 2026064290, 4052128580, 5065160725, 10130321450, 20260642900]

約数ペア:

[(1, 20260642900), (2, 10130321450), (4, 5065160725), (5, 4052128580), (10, 2026064290), (20, 1013032145), (25, 810425716), (50, 405212858), (100, 202606429), (317, 63913700), (634, 31956850), (1268, 15978425), (1585, 12782740), (3170, 6391370), (6340, 3195685), (7925, 2556548), (15850, 1278274), (31700, 639137)]