19727225

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{349}}^1$

素因数の和:402

約数の個数: 48

約数和(自身を含む): 31248000

約数和(自身を除く): 11520775

約数列:

[1, 5, 7, 17, 19, 25, 35, 85, 95, 119, 133, 175, 323, 349, 425, 475, 595, 665, 1615, 1745, 2261, 2443, 2975, 3325, 5933, 6631, 8075, 8725, 11305, 12215, 29665, 33155, 41531, 46417, 56525, 61075, 112727, 148325, 165775, 207655, 232085, 563635, 789089, 1038275, 1160425, 2818175, 3945445, 19727225]

約数ペア:

[(1, 19727225), (5, 3945445), (7, 2818175), (17, 1160425), (19, 1038275), (25, 789089), (35, 563635), (85, 232085), (95, 207655), (119, 165775), (133, 148325), (175, 112727), (323, 61075), (349, 56525), (425, 46417), (475, 41531), (595, 33155), (665, 29665), (1615, 12215), (1745, 11305), (2261, 8725), (2443, 8075), (2975, 6631), (3325, 5933)]