20543800

素因数分解:

$2^3\times 5^2\times {\mathrm{59}}^1\times {\mathrm{1741}}^1$

素因数の和:1816

約数の個数: 48

約数和(自身を含む): 48601800

約数和(自身を除く): 28058000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 59, 100, 118, 200, 236, 295, 472, 590, 1180, 1475, 1741, 2360, 2950, 3482, 5900, 6964, 8705, 11800, 13928, 17410, 34820, 43525, 69640, 87050, 102719, 174100, 205438, 348200, 410876, 513595, 821752, 1027190, 2054380, 2567975, 4108760, 5135950, 10271900, 20543800]

約数ペア:

[(1, 20543800), (2, 10271900), (4, 5135950), (5, 4108760), (8, 2567975), (10, 2054380), (20, 1027190), (25, 821752), (40, 513595), (50, 410876), (59, 348200), (100, 205438), (118, 174100), (200, 102719), (236, 87050), (295, 69640), (472, 43525), (590, 34820), (1180, 17410), (1475, 13928), (1741, 11800), (2360, 8705), (2950, 6964), (3482, 5900)]