2689480

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{947}}^1$

素因数の和:1029

約数の個数: 32

約数和(自身を含む): 6143040

約数和(自身を除く): 3453560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 947, 1420, 1894, 2840, 3788, 4735, 7576, 9470, 18940, 37880, 67237, 134474, 268948, 336185, 537896, 672370, 1344740, 2689480]

約数ペア:

[(1, 2689480), (2, 1344740), (4, 672370), (5, 537896), (8, 336185), (10, 268948), (20, 134474), (40, 67237), (71, 37880), (142, 18940), (284, 9470), (355, 7576), (568, 4735), (710, 3788), (947, 2840), (1420, 1894)]