81969968

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{36857}}^1$

素因数の和:37004

約数の個数: 20

約数和(自身を含む): 159963720

約数和(自身を除く): 77993752

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 36857, 73714, 147428, 294856, 589712, 5123123, 10246246, 20492492, 40984984, 81969968]

約数ペア:

[(1, 81969968), (2, 40984984), (4, 20492492), (8, 10246246), (16, 5123123), (139, 589712), (278, 294856), (556, 147428), (1112, 73714), (2224, 36857)]