138882340

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{17317}}^1$

素因数の和:17727

約数の個数: 24

約数和(自身を含む): 292397112

約数和(自身を除く): 153514772

約数列:

[1, 2, 4, 5, 10, 20, 401, 802, 1604, 2005, 4010, 8020, 17317, 34634, 69268, 86585, 173170, 346340, 6944117, 13888234, 27776468, 34720585, 69441170, 138882340]

約数ペア:

[(1, 138882340), (2, 69441170), (4, 34720585), (5, 27776468), (10, 13888234), (20, 6944117), (401, 346340), (802, 173170), (1604, 86585), (2005, 69268), (4010, 34634), (8020, 17317)]