131980976

素因数分解:

$2^4\times {\mathrm{977}}^1\times {\mathrm{8443}}^1$

素因数の和:9428

約数の個数: 20

約数和(自身を含む): 256005192

約数和(自身を除く): 124024216

約数列:

[1, 2, 4, 8, 16, 977, 1954, 3908, 7816, 8443, 15632, 16886, 33772, 67544, 135088, 8248811, 16497622, 32995244, 65990488, 131980976]

約数ペア:

[(1, 131980976), (2, 65990488), (4, 32995244), (8, 16497622), (16, 8248811), (977, 135088), (1954, 67544), (3908, 33772), (7816, 16886), (8443, 15632)]