12742040

素因数分解:

$2^3\times 5^1\times {\mathrm{461}}^1\times {\mathrm{691}}^1$

素因数の和:1163

約数の個数: 32

約数和(自身を含む): 28773360

約数和(自身を除く): 16031320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 461, 691, 922, 1382, 1844, 2305, 2764, 3455, 3688, 4610, 5528, 6910, 9220, 13820, 18440, 27640, 318551, 637102, 1274204, 1592755, 2548408, 3185510, 6371020, 12742040]

約数ペア:

[(1, 12742040), (2, 6371020), (4, 3185510), (5, 2548408), (8, 1592755), (10, 1274204), (20, 637102), (40, 318551), (461, 27640), (691, 18440), (922, 13820), (1382, 9220), (1844, 6910), (2305, 5528), (2764, 4610), (3455, 3688)]