8887220

素因数分解:

$2^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{1031}}^1$

素因数の和:1471

約数の個数: 24

約数和(自身を含む): 18724608

約数和(自身を除く): 9837388

約数列:

[1, 2, 4, 5, 10, 20, 431, 862, 1031, 1724, 2062, 2155, 4124, 4310, 5155, 8620, 10310, 20620, 444361, 888722, 1777444, 2221805, 4443610, 8887220]

約数ペア:

[(1, 8887220), (2, 4443610), (4, 2221805), (5, 1777444), (10, 888722), (20, 444361), (431, 20620), (862, 10310), (1031, 8620), (1724, 5155), (2062, 4310), (2155, 4124)]