667645

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1$

素因数の和:276

約数の個数: 16

約数和(自身を含む): 892800

約数和(自身を除く): 225155

約数列:

[1, 5, 11, 55, 61, 199, 305, 671, 995, 2189, 3355, 10945, 12139, 60695, 133529, 667645]

約数ペア:

[(1, 667645), (5, 133529), (11, 60695), (55, 12139), (61, 10945), (199, 3355), (305, 2189), (671, 995)]