25511255

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:156

約数の個数: 64

約数和(自身を含む): 41361408

約数和(自身を除く): 15850153

約数列:

[1, 5, 7, 11, 23, 35, 43, 55, 67, 77, 115, 161, 215, 253, 301, 335, 385, 469, 473, 737, 805, 989, 1265, 1505, 1541, 1771, 2345, 2365, 2881, 3311, 3685, 4945, 5159, 6923, 7705, 8855, 10787, 10879, 14405, 16555, 16951, 20167, 25795, 31691, 34615, 53935, 54395, 66263, 76153, 84755, 100835, 118657, 158455, 221837, 331315, 380765, 463841, 593285, 728893, 1109185, 2319205, 3644465, 5102251, 25511255]

約数ペア:

[(1, 25511255), (5, 5102251), (7, 3644465), (11, 2319205), (23, 1109185), (35, 728893), (43, 593285), (55, 463841), (67, 380765), (77, 331315), (115, 221837), (161, 158455), (215, 118657), (253, 100835), (301, 84755), (335, 76153), (385, 66263), (469, 54395), (473, 53935), (737, 34615), (805, 31691), (989, 25795), (1265, 20167), (1505, 16951), (1541, 16555), (1771, 14405), (2345, 10879), (2365, 10787), (2881, 8855), (3311, 7705), (3685, 6923), (4945, 5159)]