1640376440

素因数分解:

$2^3\times 5^1\times {\mathrm{41009411}}^1$

素因数の和:41009422

約数の個数: 16

約数和(自身を含む): 3690847080

約数和(自身を除く): 2050470640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41009411, 82018822, 164037644, 205047055, 328075288, 410094110, 820188220, 1640376440]

約数ペア:

[(1, 1640376440), (2, 820188220), (4, 410094110), (5, 328075288), (8, 205047055), (10, 164037644), (20, 82018822), (40, 41009411)]