80372560

素因数分解:

$2^4\times 5^1\times {\mathrm{1004657}}^1$

素因数の和:1004670

約数の個数: 20

約数和(自身を含む): 186866388

約数和(自身を除く): 106493828

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1004657, 2009314, 4018628, 5023285, 8037256, 10046570, 16074512, 20093140, 40186280, 80372560]

約数ペア:

[(1, 80372560), (2, 40186280), (4, 20093140), (5, 16074512), (8, 10046570), (10, 8037256), (16, 5023285), (20, 4018628), (40, 2009314), (80, 1004657)]