81837220

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{177907}}^1$

素因数の和:177939

約数の個数: 24

約数和(自身を含む): 179331264

約数和(自身を除く): 97494044

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 177907, 355814, 711628, 889535, 1779070, 3558140, 4091861, 8183722, 16367444, 20459305, 40918610, 81837220]

約数ペア:

[(1, 81837220), (2, 40918610), (4, 20459305), (5, 16367444), (10, 8183722), (20, 4091861), (23, 3558140), (46, 1779070), (92, 889535), (115, 711628), (230, 355814), (460, 177907)]