1231781488

素因数分解:

$2^4\times 7^1\times {\mathrm{2311}}^1\times {\mathrm{4759}}^1$

素因数の和:7085

約数の個数: 40

約数和(自身を含む): 2729269760

約数和(自身を除く): 1497488272

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 2311, 4622, 4759, 9244, 9518, 16177, 18488, 19036, 32354, 33313, 36976, 38072, 64708, 66626, 76144, 129416, 133252, 258832, 266504, 533008, 10998049, 21996098, 43992196, 76986343, 87984392, 153972686, 175968784, 307945372, 615890744, 1231781488]

約数ペア:

[(1, 1231781488), (2, 615890744), (4, 307945372), (7, 175968784), (8, 153972686), (14, 87984392), (16, 76986343), (28, 43992196), (56, 21996098), (112, 10998049), (2311, 533008), (4622, 266504), (4759, 258832), (9244, 133252), (9518, 129416), (16177, 76144), (18488, 66626), (19036, 64708), (32354, 38072), (33313, 36976)]