291295660

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{431}}^1\times {\mathrm{719}}^1$

素因数の和:1206

約数の個数: 48

約数和(自身を含む): 627056640

約数和(自身を除く): 335760980

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 431, 470, 719, 862, 940, 1438, 1724, 2155, 2876, 3595, 4310, 7190, 8620, 14380, 20257, 33793, 40514, 67586, 81028, 101285, 135172, 168965, 202570, 309889, 337930, 405140, 619778, 675860, 1239556, 1549445, 3098890, 6197780, 14564783, 29129566, 58259132, 72823915, 145647830, 291295660]

約数ペア:

[(1, 291295660), (2, 145647830), (4, 72823915), (5, 58259132), (10, 29129566), (20, 14564783), (47, 6197780), (94, 3098890), (188, 1549445), (235, 1239556), (431, 675860), (470, 619778), (719, 405140), (862, 337930), (940, 309889), (1438, 202570), (1724, 168965), (2155, 135172), (2876, 101285), (3595, 81028), (4310, 67586), (7190, 40514), (8620, 33793), (14380, 20257)]