81470600

素因数分解:

$2^3\times 5^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1$

素因数の和:327

約数の個数: 96

約数和(自身を含む): 200880000

約数和(自身を除く): 119409400

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 25, 40, 46, 50, 89, 92, 100, 115, 178, 184, 199, 200, 230, 356, 398, 445, 460, 575, 712, 796, 890, 920, 995, 1150, 1592, 1780, 1990, 2047, 2225, 2300, 3560, 3980, 4094, 4450, 4577, 4600, 4975, 7960, 8188, 8900, 9154, 9950, 10235, 16376, 17711, 17800, 18308, 19900, 20470, 22885, 35422, 36616, 39800, 40940, 45770, 51175, 70844, 81880, 88555, 91540, 102350, 114425, 141688, 177110, 183080, 204700, 228850, 354220, 407353, 409400, 442775, 457700, 708440, 814706, 885550, 915400, 1629412, 1771100, 2036765, 3258824, 3542200, 4073530, 8147060, 10183825, 16294120, 20367650, 40735300, 81470600]

約数ペア:

[(1, 81470600), (2, 40735300), (4, 20367650), (5, 16294120), (8, 10183825), (10, 8147060), (20, 4073530), (23, 3542200), (25, 3258824), (40, 2036765), (46, 1771100), (50, 1629412), (89, 915400), (92, 885550), (100, 814706), (115, 708440), (178, 457700), (184, 442775), (199, 409400), (200, 407353), (230, 354220), (356, 228850), (398, 204700), (445, 183080), (460, 177110), (575, 141688), (712, 114425), (796, 102350), (890, 91540), (920, 88555), (995, 81880), (1150, 70844), (1592, 51175), (1780, 45770), (1990, 40940), (2047, 39800), (2225, 36616), (2300, 35422), (3560, 22885), (3980, 20470), (4094, 19900), (4450, 18308), (4577, 17800), (4600, 17711), (4975, 16376), (7960, 10235), (8188, 9950), (8900, 9154)]