1965145

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{617}}^1$

素因数の和:649

約数の個数: 24

約数和(自身を含む): 2958984

約数和(自身を除く): 993839

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 455, 617, 637, 3085, 3185, 4319, 8021, 21595, 30233, 40105, 56147, 151165, 280735, 393029, 1965145]

約数ペア:

[(1, 1965145), (5, 393029), (7, 280735), (13, 151165), (35, 56147), (49, 40105), (65, 30233), (91, 21595), (245, 8021), (455, 4319), (617, 3185), (637, 3085)]