810280

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{431}}^1$

素因数の和:489

約数の個数: 32

約数和(自身を含む): 1866240

約数和(自身を除く): 1055960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 431, 470, 862, 940, 1724, 1880, 2155, 3448, 4310, 8620, 17240, 20257, 40514, 81028, 101285, 162056, 202570, 405140, 810280]

約数ペア:

[(1, 810280), (2, 405140), (4, 202570), (5, 162056), (8, 101285), (10, 81028), (20, 40514), (40, 20257), (47, 17240), (94, 8620), (188, 4310), (235, 3448), (376, 2155), (431, 1880), (470, 1724), (862, 940)]