640123776

素因数分解:

$2^7\times 3^3\times {\mathrm{185221}}^1$

素因数の和:185244

約数の個数: 64

約数和(自身を含む): 1889264400

約数和(自身を除く): 1249140624

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 96, 108, 128, 144, 192, 216, 288, 384, 432, 576, 864, 1152, 1728, 3456, 185221, 370442, 555663, 740884, 1111326, 1481768, 1666989, 2222652, 2963536, 3333978, 4445304, 5000967, 5927072, 6667956, 8890608, 10001934, 11854144, 13335912, 17781216, 20003868, 23708288, 26671824, 35562432, 40007736, 53343648, 71124864, 80015472, 106687296, 160030944, 213374592, 320061888, 640123776]

約数ペア:

[(1, 640123776), (2, 320061888), (3, 213374592), (4, 160030944), (6, 106687296), (8, 80015472), (9, 71124864), (12, 53343648), (16, 40007736), (18, 35562432), (24, 26671824), (27, 23708288), (32, 20003868), (36, 17781216), (48, 13335912), (54, 11854144), (64, 10001934), (72, 8890608), (96, 6667956), (108, 5927072), (128, 5000967), (144, 4445304), (192, 3333978), (216, 2963536), (288, 2222652), (384, 1666989), (432, 1481768), (576, 1111326), (864, 740884), (1152, 555663), (1728, 370442), (3456, 185221)]