20199891656

素因数分解:

$2^3\times 7^1\times {\mathrm{251}}^1\times {\mathrm{1437101}}^1$

素因数の和:1437365

約数の個数: 32

約数和(自身を含む): 43457964480

約数和(自身を除く): 23258072824

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 251, 502, 1004, 1757, 2008, 3514, 7028, 14056, 1437101, 2874202, 5748404, 10059707, 11496808, 20119414, 40238828, 80477656, 360712351, 721424702, 1442849404, 2524986457, 2885698808, 5049972914, 10099945828, 20199891656]

約数ペア:

[(1, 20199891656), (2, 10099945828), (4, 5049972914), (7, 2885698808), (8, 2524986457), (14, 1442849404), (28, 721424702), (56, 360712351), (251, 80477656), (502, 40238828), (1004, 20119414), (1757, 11496808), (2008, 10059707), (3514, 5748404), (7028, 2874202), (14056, 1437101)]