28808540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{84731}}^1$

素因数の和:84757

約数の個数: 24

約数和(自身を含む): 64057392

約数和(自身を除く): 35248852

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 84731, 169462, 338924, 423655, 847310, 1440427, 1694620, 2880854, 5761708, 7202135, 14404270, 28808540]

約数ペア:

[(1, 28808540), (2, 14404270), (4, 7202135), (5, 5761708), (10, 2880854), (17, 1694620), (20, 1440427), (34, 847310), (68, 423655), (85, 338924), (170, 169462), (340, 84731)]