78990015

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{179}}^1$

素因数の和:304

約数の個数: 64

約数和(自身を含む): 143216640

約数和(自身を除く): 64226625

約数列:

[1, 3, 5, 13, 15, 31, 39, 65, 73, 93, 155, 179, 195, 219, 365, 403, 465, 537, 895, 949, 1095, 1209, 2015, 2263, 2327, 2685, 2847, 4745, 5549, 6045, 6789, 6981, 11315, 11635, 13067, 14235, 16647, 27745, 29419, 33945, 34905, 39201, 65335, 72137, 83235, 88257, 147095, 169871, 196005, 216411, 360685, 405077, 441285, 509613, 849355, 1082055, 1215231, 2025385, 2548065, 5266001, 6076155, 15798003, 26330005, 78990015]

約数ペア:

[(1, 78990015), (3, 26330005), (5, 15798003), (13, 6076155), (15, 5266001), (31, 2548065), (39, 2025385), (65, 1215231), (73, 1082055), (93, 849355), (155, 509613), (179, 441285), (195, 405077), (219, 360685), (365, 216411), (403, 196005), (465, 169871), (537, 147095), (895, 88257), (949, 83235), (1095, 72137), (1209, 65335), (2015, 39201), (2263, 34905), (2327, 33945), (2685, 29419), (2847, 27745), (4745, 16647), (5549, 14235), (6045, 13067), (6789, 11635), (6981, 11315)]