16894720

素因数分解:

$2^8\times 5^1\times {\mathrm{67}}^1\times {\mathrm{197}}^1$

素因数の和:285

約数の個数: 72

約数和(自身を含む): 41280624

約数和(自身を除く): 24385904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 67, 80, 128, 134, 160, 197, 256, 268, 320, 335, 394, 536, 640, 670, 788, 985, 1072, 1280, 1340, 1576, 1970, 2144, 2680, 3152, 3940, 4288, 5360, 6304, 7880, 8576, 10720, 12608, 13199, 15760, 17152, 21440, 25216, 26398, 31520, 42880, 50432, 52796, 63040, 65995, 85760, 105592, 126080, 131990, 211184, 252160, 263980, 422368, 527960, 844736, 1055920, 1689472, 2111840, 3378944, 4223680, 8447360, 16894720]

約数ペア:

[(1, 16894720), (2, 8447360), (4, 4223680), (5, 3378944), (8, 2111840), (10, 1689472), (16, 1055920), (20, 844736), (32, 527960), (40, 422368), (64, 263980), (67, 252160), (80, 211184), (128, 131990), (134, 126080), (160, 105592), (197, 85760), (256, 65995), (268, 63040), (320, 52796), (335, 50432), (394, 42880), (536, 31520), (640, 26398), (670, 25216), (788, 21440), (985, 17152), (1072, 15760), (1280, 13199), (1340, 12608), (1576, 10720), (1970, 8576), (2144, 7880), (2680, 6304), (3152, 5360), (3940, 4288)]