20811648

素因数分解:

$2^7\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{379}}^1$

素因数の和:420

約数の個数: 128

約数和(自身を含む): 65116800

約数和(自身を除く): 44305152

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 13, 16, 22, 24, 26, 32, 33, 39, 44, 48, 52, 64, 66, 78, 88, 96, 104, 128, 132, 143, 156, 176, 192, 208, 264, 286, 312, 352, 379, 384, 416, 429, 528, 572, 624, 704, 758, 832, 858, 1056, 1137, 1144, 1248, 1408, 1516, 1664, 1716, 2112, 2274, 2288, 2496, 3032, 3432, 4169, 4224, 4548, 4576, 4927, 4992, 6064, 6864, 8338, 9096, 9152, 9854, 12128, 12507, 13728, 14781, 16676, 18192, 18304, 19708, 24256, 25014, 27456, 29562, 33352, 36384, 39416, 48512, 50028, 54197, 54912, 59124, 66704, 72768, 78832, 100056, 108394, 118248, 133408, 145536, 157664, 162591, 200112, 216788, 236496, 266816, 315328, 325182, 400224, 433576, 472992, 533632, 630656, 650364, 800448, 867152, 945984, 1300728, 1600896, 1734304, 1891968, 2601456, 3468608, 5202912, 6937216, 10405824, 20811648]

約数ペア:

[(1, 20811648), (2, 10405824), (3, 6937216), (4, 5202912), (6, 3468608), (8, 2601456), (11, 1891968), (12, 1734304), (13, 1600896), (16, 1300728), (22, 945984), (24, 867152), (26, 800448), (32, 650364), (33, 630656), (39, 533632), (44, 472992), (48, 433576), (52, 400224), (64, 325182), (66, 315328), (78, 266816), (88, 236496), (96, 216788), (104, 200112), (128, 162591), (132, 157664), (143, 145536), (156, 133408), (176, 118248), (192, 108394), (208, 100056), (264, 78832), (286, 72768), (312, 66704), (352, 59124), (379, 54912), (384, 54197), (416, 50028), (429, 48512), (528, 39416), (572, 36384), (624, 33352), (704, 29562), (758, 27456), (832, 25014), (858, 24256), (1056, 19708), (1137, 18304), (1144, 18192), (1248, 16676), (1408, 14781), (1516, 13728), (1664, 12507), (1716, 12128), (2112, 9854), (2274, 9152), (2288, 9096), (2496, 8338), (3032, 6864), (3432, 6064), (4169, 4992), (4224, 4927), (4548, 4576)]