2688940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{4337}}^1$

素因数の和:4377

約数の個数: 24

約数和(自身を含む): 5830272

約数和(自身を除く): 3141332

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 4337, 8674, 17348, 21685, 43370, 86740, 134447, 268894, 537788, 672235, 1344470, 2688940]

約数ペア:

[(1, 2688940), (2, 1344470), (4, 672235), (5, 537788), (10, 268894), (20, 134447), (31, 86740), (62, 43370), (124, 21685), (155, 17348), (310, 8674), (620, 4337)]