78991670

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{213491}}^1$

素因数の和:213535

約数の個数: 16

約数和(自身を含む): 146028528

約数和(自身を除く): 67036858

約数列:

[1, 2, 5, 10, 37, 74, 185, 370, 213491, 426982, 1067455, 2134910, 7899167, 15798334, 39495835, 78991670]

約数ペア:

[(1, 78991670), (2, 39495835), (5, 15798334), (10, 7899167), (37, 2134910), (74, 1067455), (185, 426982), (370, 213491)]