20643260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{911}}^1$

素因数の和:1034

約数の個数: 48

約数和(自身を含む): 47803392

約数和(自身を除く): 27160132

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 103, 110, 206, 220, 412, 515, 911, 1030, 1133, 1822, 2060, 2266, 3644, 4532, 4555, 5665, 9110, 10021, 11330, 18220, 20042, 22660, 40084, 50105, 93833, 100210, 187666, 200420, 375332, 469165, 938330, 1032163, 1876660, 2064326, 4128652, 5160815, 10321630, 20643260]

約数ペア:

[(1, 20643260), (2, 10321630), (4, 5160815), (5, 4128652), (10, 2064326), (11, 1876660), (20, 1032163), (22, 938330), (44, 469165), (55, 375332), (103, 200420), (110, 187666), (206, 100210), (220, 93833), (412, 50105), (515, 40084), (911, 22660), (1030, 20042), (1133, 18220), (1822, 11330), (2060, 10021), (2266, 9110), (3644, 5665), (4532, 4555)]