165903620

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{12941}}^1$

素因数の和:13591

約数の個数: 24

約数和(自身を含む): 348968088

約数和(自身を除く): 183064468

約数列:

[1, 2, 4, 5, 10, 20, 641, 1282, 2564, 3205, 6410, 12820, 12941, 25882, 51764, 64705, 129410, 258820, 8295181, 16590362, 33180724, 41475905, 82951810, 165903620]

約数ペア:

[(1, 165903620), (2, 82951810), (4, 41475905), (5, 33180724), (10, 16590362), (20, 8295181), (641, 258820), (1282, 129410), (2564, 64705), (3205, 51764), (6410, 25882), (12820, 12941)]