20688100

素因数分解:

$2^2\times 5^2\times {\mathrm{443}}^1\times {\mathrm{467}}^1$

素因数の和:924

約数の個数: 36

約数和(自身を含む): 45090864

約数和(自身を除く): 24402764

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 443, 467, 886, 934, 1772, 1868, 2215, 2335, 4430, 4670, 8860, 9340, 11075, 11675, 22150, 23350, 44300, 46700, 206881, 413762, 827524, 1034405, 2068810, 4137620, 5172025, 10344050, 20688100]

約数ペア:

[(1, 20688100), (2, 10344050), (4, 5172025), (5, 4137620), (10, 2068810), (20, 1034405), (25, 827524), (50, 413762), (100, 206881), (443, 46700), (467, 44300), (886, 23350), (934, 22150), (1772, 11675), (1868, 11075), (2215, 9340), (2335, 8860), (4430, 4670)]