20665512

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{313}}^1$

素因数の和:463

約数の個数: 96

約数和(自身を含む): 64658880

約数和(自身を除く): 43993368

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 131, 168, 252, 262, 313, 393, 504, 524, 626, 786, 917, 939, 1048, 1179, 1252, 1572, 1834, 1878, 2191, 2358, 2504, 2751, 2817, 3144, 3668, 3756, 4382, 4716, 5502, 5634, 6573, 7336, 7512, 8253, 8764, 9432, 11004, 11268, 13146, 16506, 17528, 19719, 22008, 22536, 26292, 33012, 39438, 41003, 52584, 66024, 78876, 82006, 123009, 157752, 164012, 246018, 287021, 328024, 369027, 492036, 574042, 738054, 861063, 984072, 1148084, 1476108, 1722126, 2296168, 2583189, 2952216, 3444252, 5166378, 6888504, 10332756, 20665512]

約数ペア:

[(1, 20665512), (2, 10332756), (3, 6888504), (4, 5166378), (6, 3444252), (7, 2952216), (8, 2583189), (9, 2296168), (12, 1722126), (14, 1476108), (18, 1148084), (21, 984072), (24, 861063), (28, 738054), (36, 574042), (42, 492036), (56, 369027), (63, 328024), (72, 287021), (84, 246018), (126, 164012), (131, 157752), (168, 123009), (252, 82006), (262, 78876), (313, 66024), (393, 52584), (504, 41003), (524, 39438), (626, 33012), (786, 26292), (917, 22536), (939, 22008), (1048, 19719), (1179, 17528), (1252, 16506), (1572, 13146), (1834, 11268), (1878, 11004), (2191, 9432), (2358, 8764), (2504, 8253), (2751, 7512), (2817, 7336), (3144, 6573), (3668, 5634), (3756, 5502), (4382, 4716)]