20485616

素因数分解:

$2^4\times {\mathrm{251}}^1\times {\mathrm{5101}}^1$

素因数の和:5360

約数の個数: 20

約数和(自身を含む): 39856824

約数和(自身を除く): 19371208

約数列:

[1, 2, 4, 8, 16, 251, 502, 1004, 2008, 4016, 5101, 10202, 20404, 40808, 81616, 1280351, 2560702, 5121404, 10242808, 20485616]

約数ペア:

[(1, 20485616), (2, 10242808), (4, 5121404), (8, 2560702), (16, 1280351), (251, 81616), (502, 40808), (1004, 20404), (2008, 10202), (4016, 5101)]