64364500

素因数分解:

$2^2\times 5^3\times {\mathrm{109}}^1\times {\mathrm{1181}}^1$

素因数の和:1309

約数の個数: 48

約数和(自身を含む): 141981840

約数和(自身を除く): 77617340

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 109, 125, 218, 250, 436, 500, 545, 1090, 1181, 2180, 2362, 2725, 4724, 5450, 5905, 10900, 11810, 13625, 23620, 27250, 29525, 54500, 59050, 118100, 128729, 147625, 257458, 295250, 514916, 590500, 643645, 1287290, 2574580, 3218225, 6436450, 12872900, 16091125, 32182250, 64364500]

約数ペア:

[(1, 64364500), (2, 32182250), (4, 16091125), (5, 12872900), (10, 6436450), (20, 3218225), (25, 2574580), (50, 1287290), (100, 643645), (109, 590500), (125, 514916), (218, 295250), (250, 257458), (436, 147625), (500, 128729), (545, 118100), (1090, 59050), (1181, 54500), (2180, 29525), (2362, 27250), (2725, 23620), (4724, 13625), (5450, 11810), (5905, 10900)]