34359340

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1\times {\mathrm{199}}^1$

素因数の和:394

約数の個数: 48

約数和(自身を含む): 74088000

約数和(自身を除く): 39728660

約数列:

[1, 2, 4, 5, 10, 20, 89, 97, 178, 194, 199, 356, 388, 398, 445, 485, 796, 890, 970, 995, 1780, 1940, 1990, 3980, 8633, 17266, 17711, 19303, 34532, 35422, 38606, 43165, 70844, 77212, 86330, 88555, 96515, 172660, 177110, 193030, 354220, 386060, 1717967, 3435934, 6871868, 8589835, 17179670, 34359340]

約数ペア:

[(1, 34359340), (2, 17179670), (4, 8589835), (5, 6871868), (10, 3435934), (20, 1717967), (89, 386060), (97, 354220), (178, 193030), (194, 177110), (199, 172660), (356, 96515), (388, 88555), (398, 86330), (445, 77212), (485, 70844), (796, 43165), (890, 38606), (970, 35422), (995, 34532), (1780, 19303), (1940, 17711), (1990, 17266), (3980, 8633)]