821780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2417}}^1$

素因数の和:2443

約数の個数: 24

約数和(自身を含む): 1828008

約数和(自身を除く): 1006228

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 2417, 4834, 9668, 12085, 24170, 41089, 48340, 82178, 164356, 205445, 410890, 821780]

約数ペア:

[(1, 821780), (2, 410890), (4, 205445), (5, 164356), (10, 82178), (17, 48340), (20, 41089), (34, 24170), (68, 12085), (85, 9668), (170, 4834), (340, 2417)]