81268796

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{67499}}^1$

素因数の和:67553

約数の個数: 24

約数和(自身を含む): 166320000

約数和(自身を除く): 85051204

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 301, 602, 1204, 67499, 134998, 269996, 472493, 944986, 1889972, 2902457, 5804914, 11609828, 20317199, 40634398, 81268796]

約数ペア:

[(1, 81268796), (2, 40634398), (4, 20317199), (7, 11609828), (14, 5804914), (28, 2902457), (43, 1889972), (86, 944986), (172, 472493), (301, 269996), (602, 134998), (1204, 67499)]