399783604

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{80407}}^1$

素因数の和:80535

約数の個数: 24

約数和(自身を含む): 769987008

約数和(自身を除く): 370203404

約数列:

[1, 2, 4, 11, 22, 44, 113, 226, 452, 1243, 2486, 4972, 80407, 160814, 321628, 884477, 1768954, 3537908, 9085991, 18171982, 36343964, 99945901, 199891802, 399783604]

約数ペア:

[(1, 399783604), (2, 199891802), (4, 99945901), (11, 36343964), (22, 18171982), (44, 9085991), (113, 3537908), (226, 1768954), (452, 884477), (1243, 321628), (2486, 160814), (4972, 80407)]