81857888

素因数分解:

$2^5\times 7^1\times {\mathrm{71}}^1\times {\mathrm{5147}}^1$

素因数の和:5235

約数の個数: 48

約数和(自身を含む): 186810624

約数和(自身を除く): 104952736

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 71, 112, 142, 224, 284, 497, 568, 994, 1136, 1988, 2272, 3976, 5147, 7952, 10294, 15904, 20588, 36029, 41176, 72058, 82352, 144116, 164704, 288232, 365437, 576464, 730874, 1152928, 1461748, 2558059, 2923496, 5116118, 5846992, 10232236, 11693984, 20464472, 40928944, 81857888]

約数ペア:

[(1, 81857888), (2, 40928944), (4, 20464472), (7, 11693984), (8, 10232236), (14, 5846992), (16, 5116118), (28, 2923496), (32, 2558059), (56, 1461748), (71, 1152928), (112, 730874), (142, 576464), (224, 365437), (284, 288232), (497, 164704), (568, 144116), (994, 82352), (1136, 72058), (1988, 41176), (2272, 36029), (3976, 20588), (5147, 15904), (7952, 10294)]