171796700

素因数分解:

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

素因数の和:399

約数の個数: 72

約数和(自身を含む): 382788000

約数和(自身を除く): 210991300

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 89, 97, 100, 178, 194, 199, 356, 388, 398, 445, 485, 796, 890, 970, 995, 1780, 1940, 1990, 2225, 2425, 3980, 4450, 4850, 4975, 8633, 8900, 9700, 9950, 17266, 17711, 19303, 19900, 34532, 35422, 38606, 43165, 70844, 77212, 86330, 88555, 96515, 172660, 177110, 193030, 215825, 354220, 386060, 431650, 442775, 482575, 863300, 885550, 965150, 1717967, 1771100, 1930300, 3435934, 6871868, 8589835, 17179670, 34359340, 42949175, 85898350, 171796700]

約数ペア:

[(1, 171796700), (2, 85898350), (4, 42949175), (5, 34359340), (10, 17179670), (20, 8589835), (25, 6871868), (50, 3435934), (89, 1930300), (97, 1771100), (100, 1717967), (178, 965150), (194, 885550), (199, 863300), (356, 482575), (388, 442775), (398, 431650), (445, 386060), (485, 354220), (796, 215825), (890, 193030), (970, 177110), (995, 172660), (1780, 96515), (1940, 88555), (1990, 86330), (2225, 77212), (2425, 70844), (3980, 43165), (4450, 38606), (4850, 35422), (4975, 34532), (8633, 19900), (8900, 19303), (9700, 17711), (9950, 17266)]