80805560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{1783}}^1$

素因数の和:1908

約数の個数: 64

約数和(自身を含む): 200378880

約数和(自身を除く): 119573320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 103, 110, 206, 220, 412, 440, 515, 824, 1030, 1133, 1783, 2060, 2266, 3566, 4120, 4532, 5665, 7132, 8915, 9064, 11330, 14264, 17830, 19613, 22660, 35660, 39226, 45320, 71320, 78452, 98065, 156904, 183649, 196130, 367298, 392260, 734596, 784520, 918245, 1469192, 1836490, 2020139, 3672980, 4040278, 7345960, 8080556, 10100695, 16161112, 20201390, 40402780, 80805560]

約数ペア:

[(1, 80805560), (2, 40402780), (4, 20201390), (5, 16161112), (8, 10100695), (10, 8080556), (11, 7345960), (20, 4040278), (22, 3672980), (40, 2020139), (44, 1836490), (55, 1469192), (88, 918245), (103, 784520), (110, 734596), (206, 392260), (220, 367298), (412, 196130), (440, 183649), (515, 156904), (824, 98065), (1030, 78452), (1133, 71320), (1783, 45320), (2060, 39226), (2266, 35660), (3566, 22660), (4120, 19613), (4532, 17830), (5665, 14264), (7132, 11330), (8915, 9064)]