168706385

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:401

約数の個数: 32

約数和(自身を含む): 219542400

約数和(自身を除く): 50836015

約数列:

[1, 5, 17, 85, 109, 131, 139, 545, 655, 695, 1853, 2227, 2363, 9265, 11135, 11815, 14279, 15151, 18209, 71395, 75755, 91045, 242743, 257567, 309553, 1213715, 1287835, 1547765, 1984781, 9923905, 33741277, 168706385]

約数ペア:

[(1, 168706385), (5, 33741277), (17, 9923905), (85, 1984781), (109, 1547765), (131, 1287835), (139, 1213715), (545, 309553), (655, 257567), (695, 242743), (1853, 91045), (2227, 75755), (2363, 71395), (9265, 18209), (11135, 15151), (11815, 14279)]