12871640

素因数分解:

$2^3\times 5^1\times {\mathrm{83}}^1\times {\mathrm{3877}}^1$

素因数の和:3971

約数の個数: 32

約数和(自身を含む): 29317680

約数和(自身を除く): 16446040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 83, 166, 332, 415, 664, 830, 1660, 3320, 3877, 7754, 15508, 19385, 31016, 38770, 77540, 155080, 321791, 643582, 1287164, 1608955, 2574328, 3217910, 6435820, 12871640]

約数ペア:

[(1, 12871640), (2, 6435820), (4, 3217910), (5, 2574328), (8, 1608955), (10, 1287164), (20, 643582), (40, 321791), (83, 155080), (166, 77540), (332, 38770), (415, 31016), (664, 19385), (830, 15508), (1660, 7754), (3320, 3877)]