1320795880

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{702551}}^1$

素因数の和:702609

約数の個数: 32

約数和(自身を含む): 3035024640

約数和(自身を除く): 1714228760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 702551, 1405102, 2810204, 3512755, 5620408, 7025510, 14051020, 28102040, 33019897, 66039794, 132079588, 165099485, 264159176, 330198970, 660397940, 1320795880]

約数ペア:

[(1, 1320795880), (2, 660397940), (4, 330198970), (5, 264159176), (8, 165099485), (10, 132079588), (20, 66039794), (40, 33019897), (47, 28102040), (94, 14051020), (188, 7025510), (235, 5620408), (376, 3512755), (470, 2810204), (940, 1405102), (1880, 702551)]