20703032

素因数分解:

$2^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:252

約数の個数: 64

約数和(自身を含む): 46448640

約数和(自身を除く): 25745608

約数列:

[1, 2, 4, 7, 8, 14, 28, 41, 56, 71, 82, 127, 142, 164, 254, 284, 287, 328, 497, 508, 568, 574, 889, 994, 1016, 1148, 1778, 1988, 2296, 2911, 3556, 3976, 5207, 5822, 7112, 9017, 10414, 11644, 18034, 20377, 20828, 23288, 36068, 36449, 40754, 41656, 63119, 72136, 72898, 81508, 126238, 145796, 163016, 252476, 291592, 369697, 504952, 739394, 1478788, 2587879, 2957576, 5175758, 10351516, 20703032]

約数ペア:

[(1, 20703032), (2, 10351516), (4, 5175758), (7, 2957576), (8, 2587879), (14, 1478788), (28, 739394), (41, 504952), (56, 369697), (71, 291592), (82, 252476), (127, 163016), (142, 145796), (164, 126238), (254, 81508), (284, 72898), (287, 72136), (328, 63119), (497, 41656), (508, 40754), (568, 36449), (574, 36068), (889, 23288), (994, 20828), (1016, 20377), (1148, 18034), (1778, 11644), (1988, 10414), (2296, 9017), (2911, 7112), (3556, 5822), (3976, 5207)]