201820520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{458683}}^1$

素因数の和:458705

約数の個数: 32

約数和(自身を含む): 495378720

約数和(自身を除く): 293558200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 458683, 917366, 1834732, 2293415, 3669464, 4586830, 5045513, 9173660, 10091026, 18347320, 20182052, 25227565, 40364104, 50455130, 100910260, 201820520]

約数ペア:

[(1, 201820520), (2, 100910260), (4, 50455130), (5, 40364104), (8, 25227565), (10, 20182052), (11, 18347320), (20, 10091026), (22, 9173660), (40, 5045513), (44, 4586830), (55, 3669464), (88, 2293415), (110, 1834732), (220, 917366), (440, 458683)]