12857480

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{2531}}^1$

素因数の和:2669

約数の個数: 32

約数和(自身を含む): 29168640

約数和(自身を除く): 16311160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2531, 2540, 5062, 5080, 10124, 12655, 20248, 25310, 50620, 101240, 321437, 642874, 1285748, 1607185, 2571496, 3214370, 6428740, 12857480]

約数ペア:

[(1, 12857480), (2, 6428740), (4, 3214370), (5, 2571496), (8, 1607185), (10, 1285748), (20, 642874), (40, 321437), (127, 101240), (254, 50620), (508, 25310), (635, 20248), (1016, 12655), (1270, 10124), (2531, 5080), (2540, 5062)]