81361616

素因数分解:

$2^4\times 7^1\times {\mathrm{577}}^1\times {\mathrm{1259}}^1$

素因数の和:1851

約数の個数: 40

約数和(自身を含む): 180613440

約数和(自身を除く): 99251824

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 577, 1154, 1259, 2308, 2518, 4039, 4616, 5036, 8078, 8813, 9232, 10072, 16156, 17626, 20144, 32312, 35252, 64624, 70504, 141008, 726443, 1452886, 2905772, 5085101, 5811544, 10170202, 11623088, 20340404, 40680808, 81361616]

約数ペア:

[(1, 81361616), (2, 40680808), (4, 20340404), (7, 11623088), (8, 10170202), (14, 5811544), (16, 5085101), (28, 2905772), (56, 1452886), (112, 726443), (577, 141008), (1154, 70504), (1259, 64624), (2308, 35252), (2518, 32312), (4039, 20144), (4616, 17626), (5036, 16156), (8078, 10072), (8813, 9232)]