81511648

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{647}}^1$

素因数の和:815

約数の個数: 48

約数和(自身を含む): 167215104

約数和(自身を除く): 85703456

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 124, 127, 248, 254, 496, 508, 647, 992, 1016, 1294, 2032, 2588, 3937, 4064, 5176, 7874, 10352, 15748, 20057, 20704, 31496, 40114, 62992, 80228, 82169, 125984, 160456, 164338, 320912, 328676, 641824, 657352, 1314704, 2547239, 2629408, 5094478, 10188956, 20377912, 40755824, 81511648]

約数ペア:

[(1, 81511648), (2, 40755824), (4, 20377912), (8, 10188956), (16, 5094478), (31, 2629408), (32, 2547239), (62, 1314704), (124, 657352), (127, 641824), (248, 328676), (254, 320912), (496, 164338), (508, 160456), (647, 125984), (992, 82169), (1016, 80228), (1294, 62992), (2032, 40114), (2588, 31496), (3937, 20704), (4064, 20057), (5176, 15748), (7874, 10352)]