251639240

素因数分解:

$2^3\times 5^1\times {\mathrm{743}}^1\times {\mathrm{8467}}^1$

素因数の和:9221

約数の個数: 32

約数和(自身を含む): 567017280

約数和(自身を除く): 315378040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 743, 1486, 2972, 3715, 5944, 7430, 8467, 14860, 16934, 29720, 33868, 42335, 67736, 84670, 169340, 338680, 6290981, 12581962, 25163924, 31454905, 50327848, 62909810, 125819620, 251639240]

約数ペア:

[(1, 251639240), (2, 125819620), (4, 62909810), (5, 50327848), (8, 31454905), (10, 25163924), (20, 12581962), (40, 6290981), (743, 338680), (1486, 169340), (2972, 84670), (3715, 67736), (5944, 42335), (7430, 33868), (8467, 29720), (14860, 16934)]