20811744

素因数分解:

$2^5\times 3^2\times {\mathrm{127}}^1\times {\mathrm{569}}^1$

素因数の和:712

約数の個数: 72

約数和(自身を含む): 59754240

約数和(自身を除く): 38942496

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 127, 144, 254, 288, 381, 508, 569, 762, 1016, 1138, 1143, 1524, 1707, 2032, 2276, 2286, 3048, 3414, 4064, 4552, 4572, 5121, 6096, 6828, 9104, 9144, 10242, 12192, 13656, 18208, 18288, 20484, 27312, 36576, 40968, 54624, 72263, 81936, 144526, 163872, 216789, 289052, 433578, 578104, 650367, 867156, 1156208, 1300734, 1734312, 2312416, 2601468, 3468624, 5202936, 6937248, 10405872, 20811744]

約数ペア:

[(1, 20811744), (2, 10405872), (3, 6937248), (4, 5202936), (6, 3468624), (8, 2601468), (9, 2312416), (12, 1734312), (16, 1300734), (18, 1156208), (24, 867156), (32, 650367), (36, 578104), (48, 433578), (72, 289052), (96, 216789), (127, 163872), (144, 144526), (254, 81936), (288, 72263), (381, 54624), (508, 40968), (569, 36576), (762, 27312), (1016, 20484), (1138, 18288), (1143, 18208), (1524, 13656), (1707, 12192), (2032, 10242), (2276, 9144), (2286, 9104), (3048, 6828), (3414, 6096), (4064, 5121), (4552, 4572)]