123420995

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{3089}}^1$

素因数の和:3286

約数の個数: 16

約数和(自身を含む): 151731360

約数和(自身を除く): 28310365

約数列:

[1, 5, 61, 131, 305, 655, 3089, 7991, 15445, 39955, 188429, 404659, 942145, 2023295, 24684199, 123420995]

約数ペア:

[(1, 123420995), (5, 24684199), (61, 2023295), (131, 942145), (305, 404659), (655, 188429), (3089, 39955), (7991, 15445)]