66861800

素因数分解:

$2^3\times 5^2\times {\mathrm{197}}^1\times {\mathrm{1697}}^1$

素因数の和:1910

約数の個数: 48

約数和(自身を含む): 156334860

約数和(自身を除く): 89473060

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 197, 200, 394, 788, 985, 1576, 1697, 1970, 3394, 3940, 4925, 6788, 7880, 8485, 9850, 13576, 16970, 19700, 33940, 39400, 42425, 67880, 84850, 169700, 334309, 339400, 668618, 1337236, 1671545, 2674472, 3343090, 6686180, 8357725, 13372360, 16715450, 33430900, 66861800]

約数ペア:

[(1, 66861800), (2, 33430900), (4, 16715450), (5, 13372360), (8, 8357725), (10, 6686180), (20, 3343090), (25, 2674472), (40, 1671545), (50, 1337236), (100, 668618), (197, 339400), (200, 334309), (394, 169700), (788, 84850), (985, 67880), (1576, 42425), (1697, 39400), (1970, 33940), (3394, 19700), (3940, 16970), (4925, 13576), (6788, 9850), (7880, 8485)]