138889135

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{5081}}^1$

素因数の和:5175

約数の個数: 32

約数和(自身を含む): 210760704

約数和(自身を除く): 71871569

約数列:

[1, 5, 7, 11, 35, 55, 71, 77, 355, 385, 497, 781, 2485, 3905, 5081, 5467, 25405, 27335, 35567, 55891, 177835, 279455, 360751, 391237, 1803755, 1956185, 2525257, 3968261, 12626285, 19841305, 27777827, 138889135]

約数ペア:

[(1, 138889135), (5, 27777827), (7, 19841305), (11, 12626285), (35, 3968261), (55, 2525257), (71, 1956185), (77, 1803755), (355, 391237), (385, 360751), (497, 279455), (781, 177835), (2485, 55891), (3905, 35567), (5081, 27335), (5467, 25405)]