20175464

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{1361}}^1$

素因数の和:1493

約数の個数: 32

約数和(自身を含む): 40451400

約数和(自身を除く): 20275936

約数列:

[1, 2, 4, 8, 17, 34, 68, 109, 136, 218, 436, 872, 1361, 1853, 2722, 3706, 5444, 7412, 10888, 14824, 23137, 46274, 92548, 148349, 185096, 296698, 593396, 1186792, 2521933, 5043866, 10087732, 20175464]

約数ペア:

[(1, 20175464), (2, 10087732), (4, 5043866), (8, 2521933), (17, 1186792), (34, 593396), (68, 296698), (109, 185096), (136, 148349), (218, 92548), (436, 46274), (872, 23137), (1361, 14824), (1853, 10888), (2722, 7412), (3706, 5444)]