166981905

素因数分解:

$3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{307}}^1$

素因数の和:420

約数の個数: 80

約数和(自身を含む): 321995520

約数和(自身を除く): 155013615

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 79, 81, 85, 135, 153, 237, 255, 307, 395, 405, 459, 711, 765, 921, 1185, 1343, 1377, 1535, 2133, 2295, 2763, 3555, 4029, 4605, 5219, 6399, 6715, 6885, 8289, 10665, 12087, 13815, 15657, 20145, 24253, 24867, 26095, 31995, 36261, 41445, 46971, 60435, 72759, 78285, 108783, 121265, 124335, 140913, 181305, 218277, 234855, 363795, 412301, 422739, 543915, 654831, 704565, 1091385, 1236903, 1964493, 2061505, 2113695, 3274155, 3710709, 6184515, 9822465, 11132127, 18553545, 33396381, 55660635, 166981905]

約数ペア:

[(1, 166981905), (3, 55660635), (5, 33396381), (9, 18553545), (15, 11132127), (17, 9822465), (27, 6184515), (45, 3710709), (51, 3274155), (79, 2113695), (81, 2061505), (85, 1964493), (135, 1236903), (153, 1091385), (237, 704565), (255, 654831), (307, 543915), (395, 422739), (405, 412301), (459, 363795), (711, 234855), (765, 218277), (921, 181305), (1185, 140913), (1343, 124335), (1377, 121265), (1535, 108783), (2133, 78285), (2295, 72759), (2763, 60435), (3555, 46971), (4029, 41445), (4605, 36261), (5219, 31995), (6399, 26095), (6715, 24867), (6885, 24253), (8289, 20145), (10665, 15657), (12087, 13815)]