2677940

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{521}}^1$

素因数の和:787

約数の個数: 24

約数和(自身を含む): 5656392

約数和(自身を除く): 2978452

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 521, 1028, 1042, 1285, 2084, 2570, 2605, 5140, 5210, 10420, 133897, 267794, 535588, 669485, 1338970, 2677940]

約数ペア:

[(1, 2677940), (2, 1338970), (4, 669485), (5, 535588), (10, 267794), (20, 133897), (257, 10420), (514, 5210), (521, 5140), (1028, 2605), (1042, 2570), (1285, 2084)]