72064400

素因数分解:

$2^4\times 5^2\times {\mathrm{180161}}^1$

素因数の和:180179

約数の個数: 30

約数和(自身を含む): 173135682

約数和(自身を除く): 101071282

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 180161, 360322, 720644, 900805, 1441288, 1801610, 2882576, 3603220, 4504025, 7206440, 9008050, 14412880, 18016100, 36032200, 72064400]

約数ペア:

[(1, 72064400), (2, 36032200), (4, 18016100), (5, 14412880), (8, 9008050), (10, 7206440), (16, 4504025), (20, 3603220), (25, 2882576), (40, 1801610), (50, 1441288), (80, 900805), (100, 720644), (200, 360322), (400, 180161)]