157215970

素因数分解:

$2^1\times 5^1\times {\mathrm{199}}^2\times {\mathrm{397}}^1$

素因数の和:802

約数の個数: 24

約数和(自身を含む): 285134364

約数和(自身を除く): 127918394

約数列:

[1, 2, 5, 10, 199, 397, 398, 794, 995, 1985, 1990, 3970, 39601, 79003, 79202, 158006, 198005, 395015, 396010, 790030, 15721597, 31443194, 78607985, 157215970]

約数ペア:

[(1, 157215970), (2, 78607985), (5, 31443194), (10, 15721597), (199, 790030), (397, 396010), (398, 395015), (794, 198005), (995, 158006), (1985, 79202), (1990, 79003), (3970, 39601)]