78957040

素因数分解:

$2^4\times 5^1\times {\mathrm{986963}}^1$

素因数の和:986976

約数の個数: 20

約数和(自身を含む): 183575304

約数和(自身を除く): 104618264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 986963, 1973926, 3947852, 4934815, 7895704, 9869630, 15791408, 19739260, 39478520, 78957040]

約数ペア:

[(1, 78957040), (2, 39478520), (4, 19739260), (5, 15791408), (8, 9869630), (10, 7895704), (16, 4934815), (20, 3947852), (40, 1973926), (80, 986963)]