181838380

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{90019}}^1$

素因数の和:90129

約数の個数: 24

約数和(自身を含む): 385645680

約数和(自身を除く): 203807300

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 90019, 180038, 360076, 450095, 900190, 1800380, 9091919, 18183838, 36367676, 45459595, 90919190, 181838380]

約数ペア:

[(1, 181838380), (2, 90919190), (4, 45459595), (5, 36367676), (10, 18183838), (20, 9091919), (101, 1800380), (202, 900190), (404, 450095), (505, 360076), (1010, 180038), (2020, 90019)]