25012455

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:240

約数の個数: 64

約数和(自身を含む): 46717440

約数和(自身を除く): 21704985

約数列:

[1, 3, 5, 13, 15, 19, 39, 43, 57, 65, 95, 129, 157, 195, 215, 247, 285, 471, 559, 645, 741, 785, 817, 1235, 1677, 2041, 2355, 2451, 2795, 2983, 3705, 4085, 6123, 6751, 8385, 8949, 10205, 10621, 12255, 14915, 20253, 30615, 31863, 33755, 38779, 44745, 53105, 87763, 101265, 116337, 128269, 159315, 193895, 263289, 384807, 438815, 581685, 641345, 1316445, 1667497, 1924035, 5002491, 8337485, 25012455]

約数ペア:

[(1, 25012455), (3, 8337485), (5, 5002491), (13, 1924035), (15, 1667497), (19, 1316445), (39, 641345), (43, 581685), (57, 438815), (65, 384807), (95, 263289), (129, 193895), (157, 159315), (195, 128269), (215, 116337), (247, 101265), (285, 87763), (471, 53105), (559, 44745), (645, 38779), (741, 33755), (785, 31863), (817, 30615), (1235, 20253), (1677, 14915), (2041, 12255), (2355, 10621), (2451, 10205), (2795, 8949), (2983, 8385), (3705, 6751), (4085, 6123)]