81663176

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47041}}^1$

素因数の和:47085

約数の個数: 32

約数和(自身を含む): 180641280

約数和(自身を除く): 98978104

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 217, 248, 434, 868, 1736, 47041, 94082, 188164, 329287, 376328, 658574, 1317148, 1458271, 2634296, 2916542, 5833084, 10207897, 11666168, 20415794, 40831588, 81663176]

約数ペア:

[(1, 81663176), (2, 40831588), (4, 20415794), (7, 11666168), (8, 10207897), (14, 5833084), (28, 2916542), (31, 2634296), (56, 1458271), (62, 1317148), (124, 658574), (217, 376328), (248, 329287), (434, 188164), (868, 94082), (1736, 47041)]