18919460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{2017}}^1$

素因数の和:2100

約数の個数: 48

約数和(自身を含む): 46107264

約数和(自身を除く): 27187804

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 67, 70, 134, 140, 268, 335, 469, 670, 938, 1340, 1876, 2017, 2345, 4034, 4690, 8068, 9380, 10085, 14119, 20170, 28238, 40340, 56476, 70595, 135139, 141190, 270278, 282380, 540556, 675695, 945973, 1351390, 1891946, 2702780, 3783892, 4729865, 9459730, 18919460]

約数ペア:

[(1, 18919460), (2, 9459730), (4, 4729865), (5, 3783892), (7, 2702780), (10, 1891946), (14, 1351390), (20, 945973), (28, 675695), (35, 540556), (67, 282380), (70, 270278), (134, 141190), (140, 135139), (268, 70595), (335, 56476), (469, 40340), (670, 28238), (938, 20170), (1340, 14119), (1876, 10085), (2017, 9380), (2345, 8068), (4034, 4690)]