20406914066

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{511631}}^1$

素因数の和:511695

約数の個数: 48

約数和(自身を含む): 39895016832

約数和(自身を除く): 19488102766

約数列:

[1, 2, 7, 11, 14, 22, 37, 49, 74, 77, 98, 154, 259, 407, 518, 539, 814, 1078, 1813, 2849, 3626, 5698, 19943, 39886, 511631, 1023262, 3581417, 5627941, 7162834, 11255882, 18930347, 25069919, 37860694, 39395587, 50139838, 78791174, 132512429, 208233817, 265024858, 275769109, 416467634, 551538218, 927587003, 1457636719, 1855174006, 2915273438, 10203457033, 20406914066]

約数ペア:

[(1, 20406914066), (2, 10203457033), (7, 2915273438), (11, 1855174006), (14, 1457636719), (22, 927587003), (37, 551538218), (49, 416467634), (74, 275769109), (77, 265024858), (98, 208233817), (154, 132512429), (259, 78791174), (407, 50139838), (518, 39395587), (539, 37860694), (814, 25069919), (1078, 18930347), (1813, 11255882), (2849, 7162834), (3626, 5627941), (5698, 3581417), (19943, 1023262), (39886, 511631)]