261460

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{769}}^1$

素因数の和:795

約数の個数: 24

約数和(自身を含む): 582120

約数和(自身を除く): 320660

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 769, 1538, 3076, 3845, 7690, 13073, 15380, 26146, 52292, 65365, 130730, 261460]

約数ペア:

[(1, 261460), (2, 130730), (4, 65365), (5, 52292), (10, 26146), (17, 15380), (20, 13073), (34, 7690), (68, 3845), (85, 3076), (170, 1538), (340, 769)]