78720895

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1061}}^1$

素因数の和:1167

約数の個数: 32

約数和(自身を含む): 110108160

約数和(自身を除く): 31387265

約数列:

[1, 5, 11, 19, 55, 71, 95, 209, 355, 781, 1045, 1061, 1349, 3905, 5305, 6745, 11671, 14839, 20159, 58355, 74195, 75331, 100795, 221749, 376655, 828641, 1108745, 1431289, 4143205, 7156445, 15744179, 78720895]

約数ペア:

[(1, 78720895), (5, 15744179), (11, 7156445), (19, 4143205), (55, 1431289), (71, 1108745), (95, 828641), (209, 376655), (355, 221749), (781, 100795), (1045, 75331), (1061, 74195), (1349, 58355), (3905, 20159), (5305, 14839), (6745, 11671)]