80811275

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{2789}}^1$

素因数の和:2879

約数の個数: 24

約数和(自身を含む): 107247600

約数和(自身を除く): 26436325

約数列:

[1, 5, 19, 25, 61, 95, 305, 475, 1159, 1525, 2789, 5795, 13945, 28975, 52991, 69725, 170129, 264955, 850645, 1324775, 3232451, 4253225, 16162255, 80811275]

約数ペア:

[(1, 80811275), (5, 16162255), (19, 4253225), (25, 3232451), (61, 1324775), (95, 850645), (305, 264955), (475, 170129), (1159, 69725), (1525, 52991), (2789, 28975), (5795, 13945)]