78023680

素因数分解:

$2^{10}\times 5^1\times 7^2\times {\mathrm{311}}^1$

素因数の和:350

約数の個数: 132

約数和(自身を含む): 218423088

約数和(自身を除く): 140399408

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, 256, 280, 311, 320, 392, 448, 490, 512, 560, 622, 640, 784, 896, 980, 1024, 1120, 1244, 1280, 1555, 1568, 1792, 1960, 2177, 2240, 2488, 2560, 3110, 3136, 3584, 3920, 4354, 4480, 4976, 5120, 6220, 6272, 7168, 7840, 8708, 8960, 9952, 10885, 12440, 12544, 15239, 15680, 17416, 17920, 19904, 21770, 24880, 25088, 30478, 31360, 34832, 35840, 39808, 43540, 49760, 50176, 60956, 62720, 69664, 76195, 79616, 87080, 99520, 121912, 125440, 139328, 152390, 159232, 174160, 199040, 243824, 250880, 278656, 304780, 318464, 348320, 398080, 487648, 557312, 609560, 696640, 796160, 975296, 1114624, 1219120, 1393280, 1592320, 1950592, 2229248, 2438240, 2786560, 3901184, 4876480, 5573120, 7802368, 9752960, 11146240, 15604736, 19505920, 39011840, 78023680]

約数ペア:

[(1, 78023680), (2, 39011840), (4, 19505920), (5, 15604736), (7, 11146240), (8, 9752960), (10, 7802368), (14, 5573120), (16, 4876480), (20, 3901184), (28, 2786560), (32, 2438240), (35, 2229248), (40, 1950592), (49, 1592320), (56, 1393280), (64, 1219120), (70, 1114624), (80, 975296), (98, 796160), (112, 696640), (128, 609560), (140, 557312), (160, 487648), (196, 398080), (224, 348320), (245, 318464), (256, 304780), (280, 278656), (311, 250880), (320, 243824), (392, 199040), (448, 174160), (490, 159232), (512, 152390), (560, 139328), (622, 125440), (640, 121912), (784, 99520), (896, 87080), (980, 79616), (1024, 76195), (1120, 69664), (1244, 62720), (1280, 60956), (1555, 50176), (1568, 49760), (1792, 43540), (1960, 39808), (2177, 35840), (2240, 34832), (2488, 31360), (2560, 30478), (3110, 25088), (3136, 24880), (3584, 21770), (3920, 19904), (4354, 17920), (4480, 17416), (4976, 15680), (5120, 15239), (6220, 12544), (6272, 12440), (7168, 10885), (7840, 9952), (8708, 8960)]