20496740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{617}}^1$

素因数の和:788

約数の個数: 48

約数和(自身を含む): 47343744

約数和(自身を除く): 26847004

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 151, 220, 302, 604, 617, 755, 1234, 1510, 1661, 2468, 3020, 3085, 3322, 6170, 6644, 6787, 8305, 12340, 13574, 16610, 27148, 33220, 33935, 67870, 93167, 135740, 186334, 372668, 465835, 931670, 1024837, 1863340, 2049674, 4099348, 5124185, 10248370, 20496740]

約数ペア:

[(1, 20496740), (2, 10248370), (4, 5124185), (5, 4099348), (10, 2049674), (11, 1863340), (20, 1024837), (22, 931670), (44, 465835), (55, 372668), (110, 186334), (151, 135740), (220, 93167), (302, 67870), (604, 33935), (617, 33220), (755, 27148), (1234, 16610), (1510, 13574), (1661, 12340), (2468, 8305), (3020, 6787), (3085, 6644), (3322, 6170)]