20328800

素因数分解:

$2^5\times 5^2\times {\mathrm{25411}}^1$

素因数の和:25431

約数の個数: 36

約数和(自身を含む): 49629636

約数和(自身を除く): 29300836

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 25411, 50822, 101644, 127055, 203288, 254110, 406576, 508220, 635275, 813152, 1016440, 1270550, 2032880, 2541100, 4065760, 5082200, 10164400, 20328800]

約数ペア:

[(1, 20328800), (2, 10164400), (4, 5082200), (5, 4065760), (8, 2541100), (10, 2032880), (16, 1270550), (20, 1016440), (25, 813152), (32, 635275), (40, 508220), (50, 406576), (80, 254110), (100, 203288), (160, 127055), (200, 101644), (400, 50822), (800, 25411)]