80487260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{2237}}^1$

素因数の和:2510

約数の個数: 48

約数和(自身を含む): 194007744

約数和(自身を除く): 113520484

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 257, 514, 1028, 1285, 1799, 2237, 2570, 3598, 4474, 5140, 7196, 8948, 8995, 11185, 15659, 17990, 22370, 31318, 35980, 44740, 62636, 78295, 156590, 313180, 574909, 1149818, 2299636, 2874545, 4024363, 5749090, 8048726, 11498180, 16097452, 20121815, 40243630, 80487260]

約数ペア:

[(1, 80487260), (2, 40243630), (4, 20121815), (5, 16097452), (7, 11498180), (10, 8048726), (14, 5749090), (20, 4024363), (28, 2874545), (35, 2299636), (70, 1149818), (140, 574909), (257, 313180), (514, 156590), (1028, 78295), (1285, 62636), (1799, 44740), (2237, 35980), (2570, 31318), (3598, 22370), (4474, 17990), (5140, 15659), (7196, 11185), (8948, 8995)]