12868120

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{827}}^1$

素因数の和:1227

約数の個数: 32

約数和(自身を含む): 29062800

約数和(自身を除く): 16194680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 827, 1556, 1654, 1945, 3112, 3308, 3890, 4135, 6616, 7780, 8270, 15560, 16540, 33080, 321703, 643406, 1286812, 1608515, 2573624, 3217030, 6434060, 12868120]

約数ペア:

[(1, 12868120), (2, 6434060), (4, 3217030), (5, 2573624), (8, 1608515), (10, 1286812), (20, 643406), (40, 321703), (389, 33080), (778, 16540), (827, 15560), (1556, 8270), (1654, 7780), (1945, 6616), (3112, 4135), (3308, 3890)]