104205040

素因数分解:

$2^4\times 5^1\times {\mathrm{1302563}}^1$

素因数の和:1302576

約数の個数: 20

約数和(自身を含む): 242276904

約数和(自身を除く): 138071864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1302563, 2605126, 5210252, 6512815, 10420504, 13025630, 20841008, 26051260, 52102520, 104205040]

約数ペア:

[(1, 104205040), (2, 52102520), (4, 26051260), (5, 20841008), (8, 13025630), (10, 10420504), (16, 6512815), (20, 5210252), (40, 2605126), (80, 1302563)]