2178825

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:182

約数の個数: 48

約数和(自身を含む): 4166400

約数和(自身を除く): 1987575

約数列:

[1, 3, 5, 11, 15, 19, 25, 33, 55, 57, 75, 95, 139, 165, 209, 275, 285, 417, 475, 627, 695, 825, 1045, 1425, 1529, 2085, 2641, 3135, 3475, 4587, 5225, 7645, 7923, 10425, 13205, 15675, 22935, 29051, 38225, 39615, 66025, 87153, 114675, 145255, 198075, 435765, 726275, 2178825]

約数ペア:

[(1, 2178825), (3, 726275), (5, 435765), (11, 198075), (15, 145255), (19, 114675), (25, 87153), (33, 66025), (55, 39615), (57, 38225), (75, 29051), (95, 22935), (139, 15675), (165, 13205), (209, 10425), (275, 7923), (285, 7645), (417, 5225), (475, 4587), (627, 3475), (695, 3135), (825, 2641), (1045, 2085), (1425, 1529)]