2912687260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{20804909}}^1$

素因数の和:20804925

約数の個数: 24

約数和(自身を含む): 6990449760

約数和(自身を除く): 4077762500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 20804909, 41609818, 83219636, 104024545, 145634363, 208049090, 291268726, 416098180, 582537452, 728171815, 1456343630, 2912687260]

約数ペア:

[(1, 2912687260), (2, 1456343630), (4, 728171815), (5, 582537452), (7, 416098180), (10, 291268726), (14, 208049090), (20, 145634363), (28, 104024545), (35, 83219636), (70, 41609818), (140, 20804909)]