156813970

素因数分解:

$2^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{79601}}^1$

素因数の和:79805

約数の個数: 16

約数和(自身を含む): 283701528

約数和(自身を除く): 126887558

約数列:

[1, 2, 5, 10, 197, 394, 985, 1970, 79601, 159202, 398005, 796010, 15681397, 31362794, 78406985, 156813970]

約数ペア:

[(1, 156813970), (2, 78406985), (5, 31362794), (10, 15681397), (197, 796010), (394, 398005), (985, 159202), (1970, 79601)]