109989290

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{2909}}^1$

素因数の和:3134

約数の個数: 32

約数和(自身を含む): 209520000

約数和(自身を除く): 99530710

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 199, 398, 995, 1990, 2909, 3781, 5818, 7562, 14545, 18905, 29090, 37810, 55271, 110542, 276355, 552710, 578891, 1157782, 2894455, 5788910, 10998929, 21997858, 54994645, 109989290]

約数ペア:

[(1, 109989290), (2, 54994645), (5, 21997858), (10, 10998929), (19, 5788910), (38, 2894455), (95, 1157782), (190, 578891), (199, 552710), (398, 276355), (995, 110542), (1990, 55271), (2909, 37810), (3781, 29090), (5818, 18905), (7562, 14545)]