238935440

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{21487}}^1$

素因数の和:21639

約数の個数: 40

約数和(自身を含む): 559547520

約数和(自身を除く): 320612080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1390, 2224, 2780, 5560, 11120, 21487, 42974, 85948, 107435, 171896, 214870, 343792, 429740, 859480, 1718960, 2986693, 5973386, 11946772, 14933465, 23893544, 29866930, 47787088, 59733860, 119467720, 238935440]

約数ペア:

[(1, 238935440), (2, 119467720), (4, 59733860), (5, 47787088), (8, 29866930), (10, 23893544), (16, 14933465), (20, 11946772), (40, 5973386), (80, 2986693), (139, 1718960), (278, 859480), (556, 429740), (695, 343792), (1112, 214870), (1390, 171896), (2224, 107435), (2780, 85948), (5560, 42974), (11120, 21487)]