80684440

素因数分解:

$2^3\times 5^1\times {\mathrm{347}}^1\times {\mathrm{5813}}^1$

素因数の和:6171

約数の個数: 32

約数和(自身を含む): 182094480

約数和(自身を除く): 101410040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 347, 694, 1388, 1735, 2776, 3470, 5813, 6940, 11626, 13880, 23252, 29065, 46504, 58130, 116260, 232520, 2017111, 4034222, 8068444, 10085555, 16136888, 20171110, 40342220, 80684440]

約数ペア:

[(1, 80684440), (2, 40342220), (4, 20171110), (5, 16136888), (8, 10085555), (10, 8068444), (20, 4034222), (40, 2017111), (347, 232520), (694, 116260), (1388, 58130), (1735, 46504), (2776, 29065), (3470, 23252), (5813, 13880), (6940, 11626)]