166940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{491}}^1$

素因数の和:517

約数の個数: 24

約数和(自身を含む): 371952

約数和(自身を除く): 205012

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 491, 982, 1964, 2455, 4910, 8347, 9820, 16694, 33388, 41735, 83470, 166940]

約数ペア:

[(1, 166940), (2, 83470), (4, 41735), (5, 33388), (10, 16694), (17, 9820), (20, 8347), (34, 4910), (68, 2455), (85, 1964), (170, 982), (340, 491)]