254408220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{128489}}^1$

素因数の和:128515

約数の個数: 72

約数和(自身を含む): 841866480

約数和(自身を除く): 587458260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 128489, 256978, 385467, 513956, 642445, 770934, 1156401, 1284890, 1413379, 1541868, 1927335, 2312802, 2569780, 2826758, 3854670, 4240137, 4625604, 5653516, 5782005, 7066895, 7709340, 8480274, 11564010, 12720411, 14133790, 16960548, 21200685, 23128020, 25440822, 28267580, 42401370, 50881644, 63602055, 84802740, 127204110, 254408220]

約数ペア:

[(1, 254408220), (2, 127204110), (3, 84802740), (4, 63602055), (5, 50881644), (6, 42401370), (9, 28267580), (10, 25440822), (11, 23128020), (12, 21200685), (15, 16960548), (18, 14133790), (20, 12720411), (22, 11564010), (30, 8480274), (33, 7709340), (36, 7066895), (44, 5782005), (45, 5653516), (55, 4625604), (60, 4240137), (66, 3854670), (90, 2826758), (99, 2569780), (110, 2312802), (132, 1927335), (165, 1541868), (180, 1413379), (198, 1284890), (220, 1156401), (330, 770934), (396, 642445), (495, 513956), (660, 385467), (990, 256978), (1980, 128489)]