990264520

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{505237}}^1$

素因数の和:505262

約数の個数: 48

約数和(自身を含む): 2591870940

約数和(自身を除く): 1601606420

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 505237, 1010474, 2020948, 2526185, 3536659, 4041896, 5052370, 7073318, 10104740, 14146636, 17683295, 20209480, 24756613, 28293272, 35366590, 49513226, 70733180, 99026452, 123783065, 141466360, 198052904, 247566130, 495132260, 990264520]

約数ペア:

[(1, 990264520), (2, 495132260), (4, 247566130), (5, 198052904), (7, 141466360), (8, 123783065), (10, 99026452), (14, 70733180), (20, 49513226), (28, 35366590), (35, 28293272), (40, 24756613), (49, 20209480), (56, 17683295), (70, 14146636), (98, 10104740), (140, 7073318), (196, 5052370), (245, 4041896), (280, 3536659), (392, 2526185), (490, 2020948), (980, 1010474), (1960, 505237)]