20108689904

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1\times {\mathrm{7351}}^1$

素因数の和:7578

約数の個数: 80

約数和(自身を含む): 42090788160

約数和(自身を除く): 21982098256

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 89, 113, 136, 178, 226, 272, 356, 452, 712, 904, 1424, 1513, 1808, 1921, 3026, 3842, 6052, 7351, 7684, 10057, 12104, 14702, 15368, 20114, 24208, 29404, 30736, 40228, 58808, 80456, 117616, 124967, 160912, 170969, 249934, 341938, 499868, 654239, 683876, 830663, 999736, 1308478, 1367752, 1661326, 1999472, 2616956, 2735504, 3322652, 5233912, 6645304, 10467824, 11122063, 13290608, 14121271, 22244126, 28242542, 44488252, 56485084, 73929007, 88976504, 112970168, 147858014, 177953008, 225940336, 295716028, 591432056, 1182864112, 1256793119, 2513586238, 5027172476, 10054344952, 20108689904]

約数ペア:

[(1, 20108689904), (2, 10054344952), (4, 5027172476), (8, 2513586238), (16, 1256793119), (17, 1182864112), (34, 591432056), (68, 295716028), (89, 225940336), (113, 177953008), (136, 147858014), (178, 112970168), (226, 88976504), (272, 73929007), (356, 56485084), (452, 44488252), (712, 28242542), (904, 22244126), (1424, 14121271), (1513, 13290608), (1808, 11122063), (1921, 10467824), (3026, 6645304), (3842, 5233912), (6052, 3322652), (7351, 2735504), (7684, 2616956), (10057, 1999472), (12104, 1661326), (14702, 1367752), (15368, 1308478), (20114, 999736), (24208, 830663), (29404, 683876), (30736, 654239), (40228, 499868), (58808, 341938), (80456, 249934), (117616, 170969), (124967, 160912)]