121319985

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{239}}^1\times {\mathrm{787}}^1$

素因数の和:1077

約数の個数: 32

約数和(自身を含む): 199710720

約数和(自身を除く): 78390735

約数列:

[1, 3, 5, 15, 43, 129, 215, 239, 645, 717, 787, 1195, 2361, 3585, 3935, 10277, 11805, 30831, 33841, 51385, 101523, 154155, 169205, 188093, 507615, 564279, 940465, 2821395, 8087999, 24263997, 40439995, 121319985]

約数ペア:

[(1, 121319985), (3, 40439995), (5, 24263997), (15, 8087999), (43, 2821395), (129, 940465), (215, 564279), (239, 507615), (645, 188093), (717, 169205), (787, 154155), (1195, 101523), (2361, 51385), (3585, 33841), (3935, 30831), (10277, 11805)]