20090045

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1\times {\mathrm{331}}^1$

素因数の和:596

約数の個数: 16

約数和(自身を含む): 24700800

約数和(自身を除く): 4610755

約数列:

[1, 5, 61, 199, 305, 331, 995, 1655, 12139, 20191, 60695, 65869, 100955, 329345, 4018009, 20090045]

約数ペア:

[(1, 20090045), (5, 4018009), (61, 329345), (199, 100955), (305, 65869), (331, 60695), (995, 20191), (1655, 12139)]