28206340

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{3517}}^1$

素因数の和:3927

約数の個数: 24

約数和(自身を含む): 59397912

約数和(自身を除く): 31191572

約数列:

[1, 2, 4, 5, 10, 20, 401, 802, 1604, 2005, 3517, 4010, 7034, 8020, 14068, 17585, 35170, 70340, 1410317, 2820634, 5641268, 7051585, 14103170, 28206340]

約数ペア:

[(1, 28206340), (2, 14103170), (4, 7051585), (5, 5641268), (10, 2820634), (20, 1410317), (401, 70340), (802, 35170), (1604, 17585), (2005, 14068), (3517, 8020), (4010, 7034)]