857140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2521}}^1$

素因数の和:2547

約数の個数: 24

約数和(自身を含む): 1906632

約数和(自身を除く): 1049492

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 2521, 5042, 10084, 12605, 25210, 42857, 50420, 85714, 171428, 214285, 428570, 857140]

約数ペア:

[(1, 857140), (2, 428570), (4, 214285), (5, 171428), (10, 85714), (17, 50420), (20, 42857), (34, 25210), (68, 12605), (85, 10084), (170, 5042), (340, 2521)]