528800

素因数分解:

$2^5\times 5^2\times {\mathrm{661}}^1$

素因数の和:681

約数の個数: 36

約数和(自身を含む): 1292886

約数和(自身を除く): 764086

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 661, 800, 1322, 2644, 3305, 5288, 6610, 10576, 13220, 16525, 21152, 26440, 33050, 52880, 66100, 105760, 132200, 264400, 528800]

約数ペア:

[(1, 528800), (2, 264400), (4, 132200), (5, 105760), (8, 66100), (10, 52880), (16, 33050), (20, 26440), (25, 21152), (32, 16525), (40, 13220), (50, 10576), (80, 6610), (100, 5288), (160, 3305), (200, 2644), (400, 1322), (661, 800)]