1393280

素因数分解:

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

素因数の和:337

約数の個数: 64

約数和(自身を含む): 3818880

約数和(自身を除く): 2425600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 311, 320, 448, 560, 622, 640, 896, 1120, 1244, 1555, 2177, 2240, 2488, 3110, 4354, 4480, 4976, 6220, 8708, 9952, 10885, 12440, 17416, 19904, 21770, 24880, 34832, 39808, 43540, 49760, 69664, 87080, 99520, 139328, 174160, 199040, 278656, 348320, 696640, 1393280]

約数ペア:

[(1, 1393280), (2, 696640), (4, 348320), (5, 278656), (7, 199040), (8, 174160), (10, 139328), (14, 99520), (16, 87080), (20, 69664), (28, 49760), (32, 43540), (35, 39808), (40, 34832), (56, 24880), (64, 21770), (70, 19904), (80, 17416), (112, 12440), (128, 10885), (140, 9952), (160, 8708), (224, 6220), (280, 4976), (311, 4480), (320, 4354), (448, 3110), (560, 2488), (622, 2240), (640, 2177), (896, 1555), (1120, 1244)]