18421280

素因数分解:

$2^5\times 5^1\times {\mathrm{115133}}^1$

素因数の和:115148

約数の個数: 24

約数和(自身を含む): 43520652

約数和(自身を除く): 25099372

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 115133, 230266, 460532, 575665, 921064, 1151330, 1842128, 2302660, 3684256, 4605320, 9210640, 18421280]

約数ペア:

[(1, 18421280), (2, 9210640), (4, 4605320), (5, 3684256), (8, 2302660), (10, 1842128), (16, 1151330), (20, 921064), (32, 575665), (40, 460532), (80, 230266), (160, 115133)]