20528656

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1063}}^1$

素因数の和:1159

約数の個数: 40

約数和(自身を含む): 42747264

約数和(自身を除く): 22218608

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 71, 136, 142, 272, 284, 568, 1063, 1136, 1207, 2126, 2414, 4252, 4828, 8504, 9656, 17008, 18071, 19312, 36142, 72284, 75473, 144568, 150946, 289136, 301892, 603784, 1207568, 1283041, 2566082, 5132164, 10264328, 20528656]

約数ペア:

[(1, 20528656), (2, 10264328), (4, 5132164), (8, 2566082), (16, 1283041), (17, 1207568), (34, 603784), (68, 301892), (71, 289136), (136, 150946), (142, 144568), (272, 75473), (284, 72284), (568, 36142), (1063, 19312), (1136, 18071), (1207, 17008), (2126, 9656), (2414, 8504), (4252, 4828)]