78939575

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{311}}^1$

素因数の和:416

約数の個数: 48

約数和(自身を含む): 116992512

約数和(自身を除く): 38052937

約数列:

[1, 5, 11, 13, 25, 55, 65, 71, 143, 275, 311, 325, 355, 715, 781, 923, 1555, 1775, 3421, 3575, 3905, 4043, 4615, 7775, 10153, 17105, 19525, 20215, 22081, 23075, 44473, 50765, 85525, 101075, 110405, 222365, 242891, 253825, 287053, 552025, 1111825, 1214455, 1435265, 3157583, 6072275, 7176325, 15787915, 78939575]

約数ペア:

[(1, 78939575), (5, 15787915), (11, 7176325), (13, 6072275), (25, 3157583), (55, 1435265), (65, 1214455), (71, 1111825), (143, 552025), (275, 287053), (311, 253825), (325, 242891), (355, 222365), (715, 110405), (781, 101075), (923, 85525), (1555, 50765), (1775, 44473), (3421, 23075), (3575, 22081), (3905, 20215), (4043, 19525), (4615, 17105), (7775, 10153)]