639117480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{54907}}^1$

素因数の和:55018

約数の個数: 64

約数和(自身を含む): 1937154240

約数和(自身を除く): 1298036760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 97, 120, 194, 291, 388, 485, 582, 776, 970, 1164, 1455, 1940, 2328, 2910, 3880, 5820, 11640, 54907, 109814, 164721, 219628, 274535, 329442, 439256, 549070, 658884, 823605, 1098140, 1317768, 1647210, 2196280, 3294420, 5325979, 6588840, 10651958, 15977937, 21303916, 26629895, 31955874, 42607832, 53259790, 63911748, 79889685, 106519580, 127823496, 159779370, 213039160, 319558740, 639117480]

約数ペア:

[(1, 639117480), (2, 319558740), (3, 213039160), (4, 159779370), (5, 127823496), (6, 106519580), (8, 79889685), (10, 63911748), (12, 53259790), (15, 42607832), (20, 31955874), (24, 26629895), (30, 21303916), (40, 15977937), (60, 10651958), (97, 6588840), (120, 5325979), (194, 3294420), (291, 2196280), (388, 1647210), (485, 1317768), (582, 1098140), (776, 823605), (970, 658884), (1164, 549070), (1455, 439256), (1940, 329442), (2328, 274535), (2910, 219628), (3880, 164721), (5820, 109814), (11640, 54907)]