261624212

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{409}}^1\times {\mathrm{3719}}^1$

素因数の和:4175

約数の個数: 24

約数和(自身を含む): 469761600

約数和(自身を除く): 208137388

約数列:

[1, 2, 4, 43, 86, 172, 409, 818, 1636, 3719, 7438, 14876, 17587, 35174, 70348, 159917, 319834, 639668, 1521071, 3042142, 6084284, 65406053, 130812106, 261624212]

約数ペア:

[(1, 261624212), (2, 130812106), (4, 65406053), (43, 6084284), (86, 3042142), (172, 1521071), (409, 639668), (818, 319834), (1636, 159917), (3719, 70348), (7438, 35174), (14876, 17587)]