20098288

素因数分解:

$2^4\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1291}}^1$

素因数の和:1445

約数の個数: 40

約数和(自身を含む): 44858240

約数和(自身を除く): 24759952

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 139, 278, 556, 973, 1112, 1291, 1946, 2224, 2582, 3892, 5164, 7784, 9037, 10328, 15568, 18074, 20656, 36148, 72296, 144592, 179449, 358898, 717796, 1256143, 1435592, 2512286, 2871184, 5024572, 10049144, 20098288]

約数ペア:

[(1, 20098288), (2, 10049144), (4, 5024572), (7, 2871184), (8, 2512286), (14, 1435592), (16, 1256143), (28, 717796), (56, 358898), (112, 179449), (139, 144592), (278, 72296), (556, 36148), (973, 20656), (1112, 18074), (1291, 15568), (1946, 10328), (2224, 9037), (2582, 7784), (3892, 5164)]