20170960

素因数分解:

$2^4\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2833}}^1$

素因数の和:2935

約数の個数: 40

約数和(自身を含む): 47441160

約数和(自身を除く): 27270200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89, 178, 356, 445, 712, 890, 1424, 1780, 2833, 3560, 5666, 7120, 11332, 14165, 22664, 28330, 45328, 56660, 113320, 226640, 252137, 504274, 1008548, 1260685, 2017096, 2521370, 4034192, 5042740, 10085480, 20170960]

約数ペア:

[(1, 20170960), (2, 10085480), (4, 5042740), (5, 4034192), (8, 2521370), (10, 2017096), (16, 1260685), (20, 1008548), (40, 504274), (80, 252137), (89, 226640), (178, 113320), (356, 56660), (445, 45328), (712, 28330), (890, 22664), (1424, 14165), (1780, 11332), (2833, 7120), (3560, 5666)]