1280015

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^2$

素因数の和:107

約数の個数: 24

約数和(自身を含む): 1823472

約数和(自身を除く): 543457

約数列:

[1, 5, 11, 17, 37, 55, 85, 185, 187, 407, 629, 935, 1369, 2035, 3145, 6845, 6919, 15059, 23273, 34595, 75295, 116365, 256003, 1280015]

約数ペア:

[(1, 1280015), (5, 256003), (11, 116365), (17, 75295), (37, 34595), (55, 23273), (85, 15059), (185, 6919), (187, 6845), (407, 3145), (629, 2035), (935, 1369)]