661273055

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:264

約数の個数: 64

約数和(自身を含む): 920678400

約数和(自身を除く): 259405345

約数列:

[1, 5, 17, 19, 71, 73, 79, 85, 95, 323, 355, 365, 395, 1207, 1241, 1343, 1349, 1387, 1501, 1615, 5183, 5609, 5767, 6035, 6205, 6715, 6745, 6935, 7505, 22933, 23579, 25517, 25915, 28045, 28835, 88111, 95353, 98039, 98477, 106571, 109573, 114665, 117895, 127585, 409457, 440555, 476765, 490195, 492385, 532855, 547865, 1674109, 1811707, 1862741, 2047285, 6960769, 7779683, 8370545, 9058535, 9313705, 34803845, 38898415, 132254611, 661273055]

約数ペア:

[(1, 661273055), (5, 132254611), (17, 38898415), (19, 34803845), (71, 9313705), (73, 9058535), (79, 8370545), (85, 7779683), (95, 6960769), (323, 2047285), (355, 1862741), (365, 1811707), (395, 1674109), (1207, 547865), (1241, 532855), (1343, 492385), (1349, 490195), (1387, 476765), (1501, 440555), (1615, 409457), (5183, 127585), (5609, 117895), (5767, 114665), (6035, 109573), (6205, 106571), (6715, 98477), (6745, 98039), (6935, 95353), (7505, 88111), (22933, 28835), (23579, 28045), (25517, 25915)]