201990021130

素因数分解:

$2^1\times 5^1\times {\mathrm{23143}}^1\times {\mathrm{872791}}^1$

素因数の和:895941

約数の個数: 16

約数和(自身を含む): 363598164864

約数和(自身を除く): 161608143734

約数列:

[1, 2, 5, 10, 23143, 46286, 115715, 231430, 872791, 1745582, 4363955, 8727910, 20199002113, 40398004226, 100995010565, 201990021130]

約数ペア:

[(1, 201990021130), (2, 100995010565), (5, 40398004226), (10, 20199002113), (23143, 8727910), (46286, 4363955), (115715, 1745582), (231430, 872791)]