140801680

素因数分解:

$2^4\times 5^1\times {\mathrm{1760021}}^1$

素因数の和:1760034

約数の個数: 20

約数和(自身を含む): 327364092

約数和(自身を除く): 186562412

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1760021, 3520042, 7040084, 8800105, 14080168, 17600210, 28160336, 35200420, 70400840, 140801680]

約数ペア:

[(1, 140801680), (2, 70400840), (4, 35200420), (5, 28160336), (8, 17600210), (10, 14080168), (16, 8800105), (20, 7040084), (40, 3520042), (80, 1760021)]