204621945

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{72949}}^1$

素因数の和:72985

約数の個数: 32

約数和(自身を含む): 378172800

約数和(自身を除く): 173550855

約数列:

[1, 3, 5, 11, 15, 17, 33, 51, 55, 85, 165, 187, 255, 561, 935, 2805, 72949, 218847, 364745, 802439, 1094235, 1240133, 2407317, 3720399, 4012195, 6200665, 12036585, 13641463, 18601995, 40924389, 68207315, 204621945]

約数ペア:

[(1, 204621945), (3, 68207315), (5, 40924389), (11, 18601995), (15, 13641463), (17, 12036585), (33, 6200665), (51, 4012195), (55, 3720399), (85, 2407317), (165, 1240133), (187, 1094235), (255, 802439), (561, 364745), (935, 218847), (2805, 72949)]