38818420

素因数分解:

$2^2\times 5^1\times {\mathrm{1021}}^1\times {\mathrm{1901}}^1$

素因数の和:2931

約数の個数: 24

約数和(自身を含む): 81641448

約数和(自身を除く): 42823028

約数列:

[1, 2, 4, 5, 10, 20, 1021, 1901, 2042, 3802, 4084, 5105, 7604, 9505, 10210, 19010, 20420, 38020, 1940921, 3881842, 7763684, 9704605, 19409210, 38818420]

約数ペア:

[(1, 38818420), (2, 19409210), (4, 9704605), (5, 7763684), (10, 3881842), (20, 1940921), (1021, 38020), (1901, 20420), (2042, 19010), (3802, 10210), (4084, 9505), (5105, 7604)]