25902305

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2131}}^1$

素因数の和:2177

約数の個数: 32

約数和(自身を含む): 38683008

約数和(自身を除く): 12780703

約数列:

[1, 5, 11, 13, 17, 55, 65, 85, 143, 187, 221, 715, 935, 1105, 2131, 2431, 10655, 12155, 23441, 27703, 36227, 117205, 138515, 181135, 304733, 398497, 470951, 1523665, 1992485, 2354755, 5180461, 25902305]

約数ペア:

[(1, 25902305), (5, 5180461), (11, 2354755), (13, 1992485), (17, 1523665), (55, 470951), (65, 398497), (85, 304733), (143, 181135), (187, 138515), (221, 117205), (715, 36227), (935, 27703), (1105, 23441), (2131, 12155), (2431, 10655)]