681008

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{1373}}^1$

素因数の和:1412

約数の個数: 20

約数和(自身を含む): 1363008

約数和(自身を除く): 682000

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 1373, 2746, 5492, 10984, 21968, 42563, 85126, 170252, 340504, 681008]

約数ペア:

[(1, 681008), (2, 340504), (4, 170252), (8, 85126), (16, 42563), (31, 21968), (62, 10984), (124, 5492), (248, 2746), (496, 1373)]