20123691784

素因数分解:

$2^3\times 7^1\times {\mathrm{113}}^1\times {\mathrm{3180103}}^1$

素因数の和:3180229

約数の個数: 32

約数和(自身を含む): 43503822720

約数和(自身を除く): 23380130936

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 113, 226, 452, 791, 904, 1582, 3164, 6328, 3180103, 6360206, 12720412, 22260721, 25440824, 44521442, 89042884, 178085768, 359351639, 718703278, 1437406556, 2515461473, 2874813112, 5030922946, 10061845892, 20123691784]

約数ペア:

[(1, 20123691784), (2, 10061845892), (4, 5030922946), (7, 2874813112), (8, 2515461473), (14, 1437406556), (28, 718703278), (56, 359351639), (113, 178085768), (226, 89042884), (452, 44521442), (791, 25440824), (904, 22260721), (1582, 12720412), (3164, 6360206), (6328, 3180103)]