54990500

素因数分解:

$2^2\times 5^3\times {\mathrm{109}}^1\times {\mathrm{1009}}^1$

素因数の和:1137

約数の個数: 48

約数和(自身を含む): 121321200

約数和(自身を除く): 66330700

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 109, 125, 218, 250, 436, 500, 545, 1009, 1090, 2018, 2180, 2725, 4036, 5045, 5450, 10090, 10900, 13625, 20180, 25225, 27250, 50450, 54500, 100900, 109981, 126125, 219962, 252250, 439924, 504500, 549905, 1099810, 2199620, 2749525, 5499050, 10998100, 13747625, 27495250, 54990500]

約数ペア:

[(1, 54990500), (2, 27495250), (4, 13747625), (5, 10998100), (10, 5499050), (20, 2749525), (25, 2199620), (50, 1099810), (100, 549905), (109, 504500), (125, 439924), (218, 252250), (250, 219962), (436, 126125), (500, 109981), (545, 100900), (1009, 54500), (1090, 50450), (2018, 27250), (2180, 25225), (2725, 20180), (4036, 13625), (5045, 10900), (5450, 10090)]