2225020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{691}}^1$

素因数の和:730

約数の個数: 48

約数和(自身を含む): 5580288

約数和(自身を除く): 3355268

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 691, 805, 1382, 1610, 2764, 3220, 3455, 4837, 6910, 9674, 13820, 15893, 19348, 24185, 31786, 48370, 63572, 79465, 96740, 111251, 158930, 222502, 317860, 445004, 556255, 1112510, 2225020]

約数ペア:

[(1, 2225020), (2, 1112510), (4, 556255), (5, 445004), (7, 317860), (10, 222502), (14, 158930), (20, 111251), (23, 96740), (28, 79465), (35, 63572), (46, 48370), (70, 31786), (92, 24185), (115, 19348), (140, 15893), (161, 13820), (230, 9674), (322, 6910), (460, 4837), (644, 3455), (691, 3220), (805, 2764), (1382, 1610)]