780296080

素因数分解:

$2^4\times 5^1\times {\mathrm{9753701}}^1$

素因数の和:9753714

約数の個数: 20

約数和(自身を含む): 1814188572

約数和(自身を除く): 1033892492

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 9753701, 19507402, 39014804, 48768505, 78029608, 97537010, 156059216, 195074020, 390148040, 780296080]

約数ペア:

[(1, 780296080), (2, 390148040), (4, 195074020), (5, 156059216), (8, 97537010), (10, 78029608), (16, 48768505), (20, 39014804), (40, 19507402), (80, 9753701)]