394880

素因数分解:

$2^7\times 5^1\times {\mathrm{617}}^1$

素因数の和:636

約数の個数: 32

約数和(自身を含む): 945540

約数和(自身を除く): 550660

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 617, 640, 1234, 2468, 3085, 4936, 6170, 9872, 12340, 19744, 24680, 39488, 49360, 78976, 98720, 197440, 394880]

約数ペア:

[(1, 394880), (2, 197440), (4, 98720), (5, 78976), (8, 49360), (10, 39488), (16, 24680), (20, 19744), (32, 12340), (40, 9872), (64, 6170), (80, 4936), (128, 3085), (160, 2468), (320, 1234), (617, 640)]