54931480

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{6971}}^1$

素因数の和:7179

約数の個数: 32

約数和(自身を含む): 124241040

約数和(自身を除く): 69309560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 6971, 7880, 13942, 27884, 34855, 55768, 69710, 139420, 278840, 1373287, 2746574, 5493148, 6866435, 10986296, 13732870, 27465740, 54931480]

約数ペア:

[(1, 54931480), (2, 27465740), (4, 13732870), (5, 10986296), (8, 6866435), (10, 5493148), (20, 2746574), (40, 1373287), (197, 278840), (394, 139420), (788, 69710), (985, 55768), (1576, 34855), (1970, 27884), (3940, 13942), (6971, 7880)]