18733480

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{4637}}^1$

素因数の和:4749

約数の個数: 32

約数和(自身を含む): 42576840

約数和(自身を除く): 23843360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 4637, 9274, 18548, 23185, 37096, 46370, 92740, 185480, 468337, 936674, 1873348, 2341685, 3746696, 4683370, 9366740, 18733480]

約数ペア:

[(1, 18733480), (2, 9366740), (4, 4683370), (5, 3746696), (8, 2341685), (10, 1873348), (20, 936674), (40, 468337), (101, 185480), (202, 92740), (404, 46370), (505, 37096), (808, 23185), (1010, 18548), (2020, 9274), (4040, 4637)]