85170440

素因数分解:

$2^3\times 5^1\times {\mathrm{2129261}}^1$

素因数の和:2129272

約数の個数: 16

約数和(自身を含む): 191633580

約数和(自身を除く): 106463140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2129261, 4258522, 8517044, 10646305, 17034088, 21292610, 42585220, 85170440]

約数ペア:

[(1, 85170440), (2, 42585220), (4, 21292610), (5, 17034088), (8, 10646305), (10, 8517044), (20, 4258522), (40, 2129261)]