391725080

素因数分解:

$2^3\times 5^1\times {\mathrm{271}}^1\times {\mathrm{36137}}^1$

素因数の和:36419

約数の個数: 32

約数和(自身を含む): 884658240

約数和(自身を除く): 492933160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 271, 542, 1084, 1355, 2168, 2710, 5420, 10840, 36137, 72274, 144548, 180685, 289096, 361370, 722740, 1445480, 9793127, 19586254, 39172508, 48965635, 78345016, 97931270, 195862540, 391725080]

約数ペア:

[(1, 391725080), (2, 195862540), (4, 97931270), (5, 78345016), (8, 48965635), (10, 39172508), (20, 19586254), (40, 9793127), (271, 1445480), (542, 722740), (1084, 361370), (1355, 289096), (2168, 180685), (2710, 144548), (5420, 72274), (10840, 36137)]