17980235

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{919}}^1$

素因数の和:987

約数の個数: 32

約数和(自身を含む): 27202560

約数和(自身を除く): 9222325

約数列:

[1, 5, 7, 13, 35, 43, 65, 91, 215, 301, 455, 559, 919, 1505, 2795, 3913, 4595, 6433, 11947, 19565, 32165, 39517, 59735, 83629, 197585, 276619, 418145, 513721, 1383095, 2568605, 3596047, 17980235]

約数ペア:

[(1, 17980235), (5, 3596047), (7, 2568605), (13, 1383095), (35, 513721), (43, 418145), (65, 276619), (91, 197585), (215, 83629), (301, 59735), (455, 39517), (559, 32165), (919, 19565), (1505, 11947), (2795, 6433), (3913, 4595)]