20631700

素因数分解:

$2^2\times 5^2\times {\mathrm{193}}^1\times {\mathrm{1069}}^1$

素因数の和:1276

約数の個数: 36

約数和(自身を含む): 45044860

約数和(自身を除く): 24413160

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 193, 386, 772, 965, 1069, 1930, 2138, 3860, 4276, 4825, 5345, 9650, 10690, 19300, 21380, 26725, 53450, 106900, 206317, 412634, 825268, 1031585, 2063170, 4126340, 5157925, 10315850, 20631700]

約数ペア:

[(1, 20631700), (2, 10315850), (4, 5157925), (5, 4126340), (10, 2063170), (20, 1031585), (25, 825268), (50, 412634), (100, 206317), (193, 106900), (386, 53450), (772, 26725), (965, 21380), (1069, 19300), (1930, 10690), (2138, 9650), (3860, 5345), (4276, 4825)]