20766800

素因数分解:

$2^4\times 5^2\times {\mathrm{193}}^1\times {\mathrm{269}}^1$

素因数の和:480

約数の個数: 60

約数和(自身を含む): 50337180

約数和(自身を除く): 29570380

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 193, 200, 269, 386, 400, 538, 772, 965, 1076, 1345, 1544, 1930, 2152, 2690, 3088, 3860, 4304, 4825, 5380, 6725, 7720, 9650, 10760, 13450, 15440, 19300, 21520, 26900, 38600, 51917, 53800, 77200, 103834, 107600, 207668, 259585, 415336, 519170, 830672, 1038340, 1297925, 2076680, 2595850, 4153360, 5191700, 10383400, 20766800]

約数ペア:

[(1, 20766800), (2, 10383400), (4, 5191700), (5, 4153360), (8, 2595850), (10, 2076680), (16, 1297925), (20, 1038340), (25, 830672), (40, 519170), (50, 415336), (80, 259585), (100, 207668), (193, 107600), (200, 103834), (269, 77200), (386, 53800), (400, 51917), (538, 38600), (772, 26900), (965, 21520), (1076, 19300), (1345, 15440), (1544, 13450), (1930, 10760), (2152, 9650), (2690, 7720), (3088, 6725), (3860, 5380), (4304, 4825)]