20451610088

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{223}}^1\times {\mathrm{263}}^1\times {\mathrm{479}}^1$

素因数の和:991

約数の個数: 128

約数和(自身を含む): 47687270400

約数和(自身を除く): 27235660312

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 223, 263, 364, 446, 479, 526, 728, 892, 958, 1052, 1561, 1784, 1841, 1916, 2104, 2899, 3122, 3353, 3419, 3682, 3832, 5798, 6227, 6244, 6706, 6838, 7364, 11596, 12454, 12488, 13412, 13676, 14728, 20293, 23192, 23933, 24908, 26824, 27352, 40586, 43589, 47866, 49816, 58649, 81172, 87178, 95732, 106817, 117298, 125977, 162344, 174356, 191464, 213634, 234596, 251954, 348712, 410543, 427268, 469192, 503908, 747719, 762437, 821086, 854536, 881839, 1007816, 1388621, 1495438, 1524874, 1637701, 1642172, 1763678, 2777242, 2990876, 3049748, 3275402, 3284344, 3527356, 5337059, 5554484, 5981752, 6099496, 6550804, 7054712, 9720347, 10674118, 11108968, 11463907, 13101608, 19440694, 21348236, 22927814, 28092871, 38881388, 42696472, 45855628, 56185742, 77762776, 91711256, 112371484, 196650097, 224742968, 365207323, 393300194, 730414646, 786600388, 1460829292, 1573200776, 2556451261, 2921658584, 5112902522, 10225805044, 20451610088]

約数ペア:

[(1, 20451610088), (2, 10225805044), (4, 5112902522), (7, 2921658584), (8, 2556451261), (13, 1573200776), (14, 1460829292), (26, 786600388), (28, 730414646), (52, 393300194), (56, 365207323), (91, 224742968), (104, 196650097), (182, 112371484), (223, 91711256), (263, 77762776), (364, 56185742), (446, 45855628), (479, 42696472), (526, 38881388), (728, 28092871), (892, 22927814), (958, 21348236), (1052, 19440694), (1561, 13101608), (1784, 11463907), (1841, 11108968), (1916, 10674118), (2104, 9720347), (2899, 7054712), (3122, 6550804), (3353, 6099496), (3419, 5981752), (3682, 5554484), (3832, 5337059), (5798, 3527356), (6227, 3284344), (6244, 3275402), (6706, 3049748), (6838, 2990876), (7364, 2777242), (11596, 1763678), (12454, 1642172), (12488, 1637701), (13412, 1524874), (13676, 1495438), (14728, 1388621), (20293, 1007816), (23192, 881839), (23933, 854536), (24908, 821086), (26824, 762437), (27352, 747719), (40586, 503908), (43589, 469192), (47866, 427268), (49816, 410543), (58649, 348712), (81172, 251954), (87178, 234596), (95732, 213634), (106817, 191464), (117298, 174356), (125977, 162344)]