83920400

素因数分解:

$2^4\times 5^2\times {\mathrm{209801}}^1$

素因数の和:209819

約数の個数: 30

約数和(自身を含む): 201619722

約数和(自身を除く): 117699322

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 209801, 419602, 839204, 1049005, 1678408, 2098010, 3356816, 4196020, 5245025, 8392040, 10490050, 16784080, 20980100, 41960200, 83920400]

約数ペア:

[(1, 83920400), (2, 41960200), (4, 20980100), (5, 16784080), (8, 10490050), (10, 8392040), (16, 5245025), (20, 4196020), (25, 3356816), (40, 2098010), (50, 1678408), (80, 1049005), (100, 839204), (200, 419602), (400, 209801)]