20512247245

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1733}}^1\times {\mathrm{10909}}^1$

素因数の和:12685

約数の個数: 32

約数和(自身を含む): 29057955840

約数和(自身を除く): 8545708595

約数列:

[1, 5, 7, 31, 35, 155, 217, 1085, 1733, 8665, 10909, 12131, 53723, 54545, 60655, 76363, 268615, 338179, 376061, 381815, 1690895, 1880305, 2367253, 11836265, 18905297, 94526485, 132337079, 586064207, 661685395, 2930321035, 4102449449, 20512247245]

約数ペア:

[(1, 20512247245), (5, 4102449449), (7, 2930321035), (31, 661685395), (35, 586064207), (155, 132337079), (217, 94526485), (1085, 18905297), (1733, 11836265), (8665, 2367253), (10909, 1880305), (12131, 1690895), (53723, 381815), (54545, 376061), (60655, 338179), (76363, 268615)]