2154555

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1$

素因数の和:180

約数の個数: 48

約数和(自身を含む): 4193280

約数和(自身を除く): 2038725

約数列:

[1, 3, 5, 9, 13, 15, 29, 39, 45, 65, 87, 117, 127, 145, 195, 261, 377, 381, 435, 585, 635, 1131, 1143, 1305, 1651, 1885, 1905, 3393, 3683, 4953, 5655, 5715, 8255, 11049, 14859, 16965, 18415, 24765, 33147, 47879, 55245, 74295, 143637, 165735, 239395, 430911, 718185, 2154555]

約数ペア:

[(1, 2154555), (3, 718185), (5, 430911), (9, 239395), (13, 165735), (15, 143637), (29, 74295), (39, 55245), (45, 47879), (65, 33147), (87, 24765), (117, 18415), (127, 16965), (145, 14859), (195, 11049), (261, 8255), (377, 5715), (381, 5655), (435, 4953), (585, 3683), (635, 3393), (1131, 1905), (1143, 1885), (1305, 1651)]