20646420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{3407}}^1$

素因数の和:3520

約数の個数: 48

約数和(自身を含む): 58399488

約数和(自身を除く): 37753068

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 101, 202, 303, 404, 505, 606, 1010, 1212, 1515, 2020, 3030, 3407, 6060, 6814, 10221, 13628, 17035, 20442, 34070, 40884, 51105, 68140, 102210, 204420, 344107, 688214, 1032321, 1376428, 1720535, 2064642, 3441070, 4129284, 5161605, 6882140, 10323210, 20646420]

約数ペア:

[(1, 20646420), (2, 10323210), (3, 6882140), (4, 5161605), (5, 4129284), (6, 3441070), (10, 2064642), (12, 1720535), (15, 1376428), (20, 1032321), (30, 688214), (60, 344107), (101, 204420), (202, 102210), (303, 68140), (404, 51105), (505, 40884), (606, 34070), (1010, 20442), (1212, 17035), (1515, 13628), (2020, 10221), (3030, 6814), (3407, 6060)]