647577666

素因数分解:

$2^1\times 3^4\times {\mathrm{397}}^1\times {\mathrm{10069}}^1$

素因数の和:10480

約数の個数: 40

約数和(自身を含む): 1454853180

約数和(自身を除く): 807275514

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 397, 794, 1191, 2382, 3573, 7146, 10069, 10719, 20138, 21438, 30207, 32157, 60414, 64314, 90621, 181242, 271863, 543726, 815589, 1631178, 3997393, 7994786, 11992179, 23984358, 35976537, 71953074, 107929611, 215859222, 323788833, 647577666]

約数ペア:

[(1, 647577666), (2, 323788833), (3, 215859222), (6, 107929611), (9, 71953074), (18, 35976537), (27, 23984358), (54, 11992179), (81, 7994786), (162, 3997393), (397, 1631178), (794, 815589), (1191, 543726), (2382, 271863), (3573, 181242), (7146, 90621), (10069, 64314), (10719, 60414), (20138, 32157), (21438, 30207)]