12661900

素因数分解:

$2^2\times 5^2\times {\mathrm{127}}^1\times {\mathrm{997}}^1$

素因数の和:1138

約数の個数: 36

約数和(自身を含む): 27720448

約数和(自身を除く): 15058548

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 127, 254, 508, 635, 997, 1270, 1994, 2540, 3175, 3988, 4985, 6350, 9970, 12700, 19940, 24925, 49850, 99700, 126619, 253238, 506476, 633095, 1266190, 2532380, 3165475, 6330950, 12661900]

約数ペア:

[(1, 12661900), (2, 6330950), (4, 3165475), (5, 2532380), (10, 1266190), (20, 633095), (25, 506476), (50, 253238), (100, 126619), (127, 99700), (254, 49850), (508, 24925), (635, 19940), (997, 12700), (1270, 9970), (1994, 6350), (2540, 4985), (3175, 3988)]