20643800

素因数分解:

$2^3\times 5^2\times {\mathrm{233}}^1\times {\mathrm{443}}^1$

素因数の和:692

約数の個数: 48

約数和(自身を含む): 48311640

約数和(自身を除く): 27667840

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 233, 443, 466, 886, 932, 1165, 1772, 1864, 2215, 2330, 3544, 4430, 4660, 5825, 8860, 9320, 11075, 11650, 17720, 22150, 23300, 44300, 46600, 88600, 103219, 206438, 412876, 516095, 825752, 1032190, 2064380, 2580475, 4128760, 5160950, 10321900, 20643800]

約数ペア:

[(1, 20643800), (2, 10321900), (4, 5160950), (5, 4128760), (8, 2580475), (10, 2064380), (20, 1032190), (25, 825752), (40, 516095), (50, 412876), (100, 206438), (200, 103219), (233, 88600), (443, 46600), (466, 44300), (886, 23300), (932, 22150), (1165, 17720), (1772, 11650), (1864, 11075), (2215, 9320), (2330, 8860), (3544, 5825), (4430, 4660)]