20087480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71741}}^1$

素因数の和:71759

約数の個数: 32

約数和(自身を含む): 51654240

約数和(自身を除く): 31566760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 71741, 143482, 286964, 358705, 502187, 573928, 717410, 1004374, 1434820, 2008748, 2510935, 2869640, 4017496, 5021870, 10043740, 20087480]

約数ペア:

[(1, 20087480), (2, 10043740), (4, 5021870), (5, 4017496), (7, 2869640), (8, 2510935), (10, 2008748), (14, 1434820), (20, 1004374), (28, 717410), (35, 573928), (40, 502187), (56, 358705), (70, 286964), (140, 143482), (280, 71741)]