668005

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1$

素因数の和:300

約数の個数: 16

約数和(自身を含む): 887040

約数和(自身を除く): 219035

約数列:

[1, 5, 13, 43, 65, 215, 239, 559, 1195, 2795, 3107, 10277, 15535, 51385, 133601, 668005]

約数ペア:

[(1, 668005), (5, 133601), (13, 51385), (43, 15535), (65, 10277), (215, 3107), (239, 2795), (559, 1195)]