81795664

素因数分解:

$2^4\times {\mathrm{313}}^1\times {\mathrm{16333}}^1$

素因数の和:16654

約数の個数: 20

約数和(自身を含む): 158995156

約数和(自身を除く): 77199492

約数列:

[1, 2, 4, 8, 16, 313, 626, 1252, 2504, 5008, 16333, 32666, 65332, 130664, 261328, 5112229, 10224458, 20448916, 40897832, 81795664]

約数ペア:

[(1, 81795664), (2, 40897832), (4, 20448916), (8, 10224458), (16, 5112229), (313, 261328), (626, 130664), (1252, 65332), (2504, 32666), (5008, 16333)]