199940545

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{1451}}^1$

素因数の和:1621

約数の個数: 32

約数和(自身を含む): 285474816

約数和(自身を除く): 85534271

約数列:

[1, 5, 7, 31, 35, 127, 155, 217, 635, 889, 1085, 1451, 3937, 4445, 7255, 10157, 19685, 27559, 44981, 50785, 137795, 184277, 224905, 314867, 921385, 1289939, 1574335, 5712587, 6449695, 28562935, 39988109, 199940545]

約数ペア:

[(1, 199940545), (5, 39988109), (7, 28562935), (31, 6449695), (35, 5712587), (127, 1574335), (155, 1289939), (217, 921385), (635, 314867), (889, 224905), (1085, 184277), (1451, 137795), (3937, 50785), (4445, 44981), (7255, 27559), (10157, 19685)]