20197870864

素因数分解:

$2^4\times {\mathrm{281}}^1\times {\mathrm{4492409}}^1$

素因数の和:4492698

約数の個数: 20

約数和(自身を含む): 39272648220

約数和(自身を除く): 19074777356

約数列:

[1, 2, 4, 8, 16, 281, 562, 1124, 2248, 4496, 4492409, 8984818, 17969636, 35939272, 71878544, 1262366929, 2524733858, 5049467716, 10098935432, 20197870864]

約数ペア:

[(1, 20197870864), (2, 10098935432), (4, 5049467716), (8, 2524733858), (16, 1262366929), (281, 71878544), (562, 35939272), (1124, 17969636), (2248, 8984818), (4496, 4492409)]