680000005

素因数分解:

$5^1\times {\mathrm{79}}^1\times {\mathrm{457}}^1\times {\mathrm{3767}}^1$

素因数の和:4308

約数の個数: 16

約数和(自身を含む): 828357120

約数和(自身を除く): 148357115

約数列:

[1, 5, 79, 395, 457, 2285, 3767, 18835, 36103, 180515, 297593, 1487965, 1721519, 8607595, 136000001, 680000005]

約数ペア:

[(1, 680000005), (5, 136000001), (79, 8607595), (395, 1721519), (457, 1487965), (2285, 297593), (3767, 180515), (18835, 36103)]