20515616

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{349}}^1$

素因数の和:537

約数の個数: 48

約数和(自身を含む): 44452800

約数和(自身を除く): 23937184

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 167, 176, 334, 349, 352, 668, 698, 1336, 1396, 1837, 2672, 2792, 3674, 3839, 5344, 5584, 7348, 7678, 11168, 14696, 15356, 29392, 30712, 58283, 58784, 61424, 116566, 122848, 233132, 466264, 641113, 932528, 1282226, 1865056, 2564452, 5128904, 10257808, 20515616]

約数ペア:

[(1, 20515616), (2, 10257808), (4, 5128904), (8, 2564452), (11, 1865056), (16, 1282226), (22, 932528), (32, 641113), (44, 466264), (88, 233132), (167, 122848), (176, 116566), (334, 61424), (349, 58784), (352, 58283), (668, 30712), (698, 29392), (1336, 15356), (1396, 14696), (1837, 11168), (2672, 7678), (2792, 7348), (3674, 5584), (3839, 5344)]