18728055

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{127}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 34145280

約数和(自身を除く): 15417225

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 113, 127, 145, 261, 339, 381, 435, 565, 635, 1017, 1143, 1305, 1695, 1905, 3277, 3683, 5085, 5715, 9831, 11049, 14351, 16385, 18415, 29493, 33147, 43053, 49155, 55245, 71755, 129159, 147465, 165735, 215265, 416179, 645795, 1248537, 2080895, 3745611, 6242685, 18728055]

約数ペア:

[(1, 18728055), (3, 6242685), (5, 3745611), (9, 2080895), (15, 1248537), (29, 645795), (45, 416179), (87, 215265), (113, 165735), (127, 147465), (145, 129159), (261, 71755), (339, 55245), (381, 49155), (435, 43053), (565, 33147), (635, 29493), (1017, 18415), (1143, 16385), (1305, 14351), (1695, 11049), (1905, 9831), (3277, 5715), (3683, 5085)]