138497180

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{168899}}^1$

素因数の和:168949

約数の個数: 24

約数和(自身を含む): 297939600

約数和(自身を除く): 159442420

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 168899, 337798, 675596, 844495, 1688990, 3377980, 6924859, 13849718, 27699436, 34624295, 69248590, 138497180]

約数ペア:

[(1, 138497180), (2, 69248590), (4, 34624295), (5, 27699436), (10, 13849718), (20, 6924859), (41, 3377980), (82, 1688990), (164, 844495), (205, 675596), (410, 337798), (820, 168899)]