20928800

素因数分解:

$2^5\times 5^2\times {\mathrm{26161}}^1$

素因数の和:26181

約数の個数: 36

約数和(自身を含む): 51094386

約数和(自身を除く): 30165586

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 26161, 52322, 104644, 130805, 209288, 261610, 418576, 523220, 654025, 837152, 1046440, 1308050, 2092880, 2616100, 4185760, 5232200, 10464400, 20928800]

約数ペア:

[(1, 20928800), (2, 10464400), (4, 5232200), (5, 4185760), (8, 2616100), (10, 2092880), (16, 1308050), (20, 1046440), (25, 837152), (32, 654025), (40, 523220), (50, 418576), (80, 261610), (100, 209288), (160, 130805), (200, 104644), (400, 52322), (800, 26161)]