131144680

素因数分解:

$2^3\times 5^1\times {\mathrm{431}}^1\times {\mathrm{7607}}^1$

素因数の和:8049

約数の個数: 32

約数和(自身を含む): 295799040

約数和(自身を除く): 164654360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 431, 862, 1724, 2155, 3448, 4310, 7607, 8620, 15214, 17240, 30428, 38035, 60856, 76070, 152140, 304280, 3278617, 6557234, 13114468, 16393085, 26228936, 32786170, 65572340, 131144680]

約数ペア:

[(1, 131144680), (2, 65572340), (4, 32786170), (5, 26228936), (8, 16393085), (10, 13114468), (20, 6557234), (40, 3278617), (431, 304280), (862, 152140), (1724, 76070), (2155, 60856), (3448, 38035), (4310, 30428), (7607, 17240), (8620, 15214)]