1280294018

素因数分解:

$2^1\times {\mathrm{643}}^1\times {\mathrm{977}}^1\times {\mathrm{1019}}^1$

素因数の和:2641

約数の個数: 16

約数和(自身を含む): 1927285920

約数和(自身を除く): 646991902

約数列:

[1, 2, 643, 977, 1019, 1286, 1954, 2038, 628211, 655217, 995563, 1256422, 1310434, 1991126, 640147009, 1280294018]

約数ペア:

[(1, 1280294018), (2, 640147009), (643, 1991126), (977, 1310434), (1019, 1256422), (1286, 995563), (1954, 655217), (2038, 628211)]