68270720

素因数分解:

$2^7\times 5^1\times 7^3\times {\mathrm{311}}^1$

素因数の和:351

約数の個数: 128

約数和(自身を含む): 190944000

約数和(自身を除く): 122673280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 280, 311, 320, 343, 392, 448, 490, 560, 622, 640, 686, 784, 896, 980, 1120, 1244, 1372, 1555, 1568, 1715, 1960, 2177, 2240, 2488, 2744, 3110, 3136, 3430, 3920, 4354, 4480, 4976, 5488, 6220, 6272, 6860, 7840, 8708, 9952, 10885, 10976, 12440, 13720, 15239, 15680, 17416, 19904, 21770, 21952, 24880, 27440, 30478, 31360, 34832, 39808, 43540, 43904, 49760, 54880, 60956, 69664, 76195, 87080, 99520, 106673, 109760, 121912, 139328, 152390, 174160, 199040, 213346, 219520, 243824, 278656, 304780, 348320, 426692, 487648, 533365, 609560, 696640, 853384, 975296, 1066730, 1219120, 1393280, 1706768, 1950592, 2133460, 2438240, 3413536, 4266920, 4876480, 6827072, 8533840, 9752960, 13654144, 17067680, 34135360, 68270720]

約数ペア:

[(1, 68270720), (2, 34135360), (4, 17067680), (5, 13654144), (7, 9752960), (8, 8533840), (10, 6827072), (14, 4876480), (16, 4266920), (20, 3413536), (28, 2438240), (32, 2133460), (35, 1950592), (40, 1706768), (49, 1393280), (56, 1219120), (64, 1066730), (70, 975296), (80, 853384), (98, 696640), (112, 609560), (128, 533365), (140, 487648), (160, 426692), (196, 348320), (224, 304780), (245, 278656), (280, 243824), (311, 219520), (320, 213346), (343, 199040), (392, 174160), (448, 152390), (490, 139328), (560, 121912), (622, 109760), (640, 106673), (686, 99520), (784, 87080), (896, 76195), (980, 69664), (1120, 60956), (1244, 54880), (1372, 49760), (1555, 43904), (1568, 43540), (1715, 39808), (1960, 34832), (2177, 31360), (2240, 30478), (2488, 27440), (2744, 24880), (3110, 21952), (3136, 21770), (3430, 19904), (3920, 17416), (4354, 15680), (4480, 15239), (4976, 13720), (5488, 12440), (6220, 10976), (6272, 10885), (6860, 9952), (7840, 8708)]