287339975

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{709}}^1$

素因数の和:804

約数の個数: 48

約数和(自身を含む): 406744800

約数和(自身を除く): 119404825

約数列:

[1, 5, 13, 25, 29, 43, 65, 145, 215, 325, 377, 559, 709, 725, 1075, 1247, 1885, 2795, 3545, 6235, 9217, 9425, 13975, 16211, 17725, 20561, 30487, 31175, 46085, 81055, 102805, 152435, 230425, 267293, 396331, 405275, 514025, 762175, 884123, 1336465, 1981655, 4420615, 6682325, 9908275, 11493599, 22103075, 57467995, 287339975]

約数ペア:

[(1, 287339975), (5, 57467995), (13, 22103075), (25, 11493599), (29, 9908275), (43, 6682325), (65, 4420615), (145, 1981655), (215, 1336465), (325, 884123), (377, 762175), (559, 514025), (709, 405275), (725, 396331), (1075, 267293), (1247, 230425), (1885, 152435), (2795, 102805), (3545, 81055), (6235, 46085), (9217, 31175), (9425, 30487), (13975, 20561), (16211, 17725)]