20738080

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{11783}}^1$

素因数の和:11809

約数の個数: 48

約数和(自身を含む): 53452224

約数和(自身を除く): 32714144

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 11783, 23566, 47132, 58915, 94264, 117830, 129613, 188528, 235660, 259226, 377056, 471320, 518452, 648065, 942640, 1036904, 1296130, 1885280, 2073808, 2592260, 4147616, 5184520, 10369040, 20738080]

約数ペア:

[(1, 20738080), (2, 10369040), (4, 5184520), (5, 4147616), (8, 2592260), (10, 2073808), (11, 1885280), (16, 1296130), (20, 1036904), (22, 942640), (32, 648065), (40, 518452), (44, 471320), (55, 377056), (80, 259226), (88, 235660), (110, 188528), (160, 129613), (176, 117830), (220, 94264), (352, 58915), (440, 47132), (880, 23566), (1760, 11783)]