28780810

素因数分解:

$2^1\times 5^1\times {\mathrm{181}}^1\times {\mathrm{15901}}^1$

素因数の和:16089

約数の個数: 16

約数和(自身を含む): 52094952

約数和(自身を除く): 23314142

約数列:

[1, 2, 5, 10, 181, 362, 905, 1810, 15901, 31802, 79505, 159010, 2878081, 5756162, 14390405, 28780810]

約数ペア:

[(1, 28780810), (2, 14390405), (5, 5756162), (10, 2878081), (181, 159010), (362, 79505), (905, 31802), (1810, 15901)]