20228840

素因数分解:

$2^3\times 5^1\times {\mathrm{283}}^1\times {\mathrm{1787}}^1$

素因数の和:2081

約数の個数: 32

約数和(自身を含む): 45701280

約数和(自身を除く): 25472440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 283, 566, 1132, 1415, 1787, 2264, 2830, 3574, 5660, 7148, 8935, 11320, 14296, 17870, 35740, 71480, 505721, 1011442, 2022884, 2528605, 4045768, 5057210, 10114420, 20228840]

約数ペア:

[(1, 20228840), (2, 10114420), (4, 5057210), (5, 4045768), (8, 2528605), (10, 2022884), (20, 1011442), (40, 505721), (283, 71480), (566, 35740), (1132, 17870), (1415, 14296), (1787, 11320), (2264, 8935), (2830, 7148), (3574, 5660)]