209905425

素因数分解:

$3^4\times 5^2\times {\mathrm{103657}}^1$

素因数の和:103679

約数の個数: 30

約数和(自身を含む): 388821158

約数和(自身を除く): 178915733

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 103657, 310971, 518285, 932913, 1554855, 2591425, 2798739, 4664565, 7774275, 8396217, 13993695, 23322825, 41981085, 69968475, 209905425]

約数ペア:

[(1, 209905425), (3, 69968475), (5, 41981085), (9, 23322825), (15, 13993695), (25, 8396217), (27, 7774275), (45, 4664565), (75, 2798739), (81, 2591425), (135, 1554855), (225, 932913), (405, 518285), (675, 310971), (2025, 103657)]