55147720

素因数分解:

$2^3\times 5^1\times {\mathrm{1013}}^1\times {\mathrm{1361}}^1$

素因数の和:2385

約数の個数: 32

約数和(自身を含む): 124296120

約数和(自身を除く): 69148400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1013, 1361, 2026, 2722, 4052, 5065, 5444, 6805, 8104, 10130, 10888, 13610, 20260, 27220, 40520, 54440, 1378693, 2757386, 5514772, 6893465, 11029544, 13786930, 27573860, 55147720]

約数ペア:

[(1, 55147720), (2, 27573860), (4, 13786930), (5, 11029544), (8, 6893465), (10, 5514772), (20, 2757386), (40, 1378693), (1013, 54440), (1361, 40520), (2026, 27220), (2722, 20260), (4052, 13610), (5065, 10888), (5444, 10130), (6805, 8104)]