20664864

素因数分解:

$2^5\times 3^2\times {\mathrm{11}}^2\times {\mathrm{593}}^1$

素因数の和:631

約数の個数: 108

約数和(自身を含む): 64702638

約数和(自身を除く): 44037774

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 32, 33, 36, 44, 48, 66, 72, 88, 96, 99, 121, 132, 144, 176, 198, 242, 264, 288, 352, 363, 396, 484, 528, 593, 726, 792, 968, 1056, 1089, 1186, 1452, 1584, 1779, 1936, 2178, 2372, 2904, 3168, 3558, 3872, 4356, 4744, 5337, 5808, 6523, 7116, 8712, 9488, 10674, 11616, 13046, 14232, 17424, 18976, 19569, 21348, 26092, 28464, 34848, 39138, 42696, 52184, 56928, 58707, 71753, 78276, 85392, 104368, 117414, 143506, 156552, 170784, 208736, 215259, 234828, 287012, 313104, 430518, 469656, 574024, 626208, 645777, 861036, 939312, 1148048, 1291554, 1722072, 1878624, 2296096, 2583108, 3444144, 5166216, 6888288, 10332432, 20664864]

約数ペア:

[(1, 20664864), (2, 10332432), (3, 6888288), (4, 5166216), (6, 3444144), (8, 2583108), (9, 2296096), (11, 1878624), (12, 1722072), (16, 1291554), (18, 1148048), (22, 939312), (24, 861036), (32, 645777), (33, 626208), (36, 574024), (44, 469656), (48, 430518), (66, 313104), (72, 287012), (88, 234828), (96, 215259), (99, 208736), (121, 170784), (132, 156552), (144, 143506), (176, 117414), (198, 104368), (242, 85392), (264, 78276), (288, 71753), (352, 58707), (363, 56928), (396, 52184), (484, 42696), (528, 39138), (593, 34848), (726, 28464), (792, 26092), (968, 21348), (1056, 19569), (1089, 18976), (1186, 17424), (1452, 14232), (1584, 13046), (1779, 11616), (1936, 10674), (2178, 9488), (2372, 8712), (2904, 7116), (3168, 6523), (3558, 5808), (3872, 5337), (4356, 4744)]