197440

素因数分解:

$2^6\times 5^1\times {\mathrm{617}}^1$

素因数の和:634

約数の個数: 28

約数和(自身を含む): 470916

約数和(自身を除く): 273476

約数列:

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

約数ペア:

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