19920400

素因数分解:

$2^4\times 5^2\times {\mathrm{49801}}^1$

素因数の和:49819

約数の個数: 30

約数和(自身を含む): 47859722

約数和(自身を除く): 27939322

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 49801, 99602, 199204, 249005, 398408, 498010, 796816, 996020, 1245025, 1992040, 2490050, 3984080, 4980100, 9960200, 19920400]

約数ペア:

[(1, 19920400), (2, 9960200), (4, 4980100), (5, 3984080), (8, 2490050), (10, 1992040), (16, 1245025), (20, 996020), (25, 796816), (40, 498010), (50, 398408), (80, 249005), (100, 199204), (200, 99602), (400, 49801)]