54680720

素因数分解:

$2^4\times 5^1\times {\mathrm{643}}^1\times {\mathrm{1063}}^1$

素因数の和:1719

約数の個数: 40

約数和(自身を含む): 127450176

約数和(自身を除く): 72769456

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 643, 1063, 1286, 2126, 2572, 3215, 4252, 5144, 5315, 6430, 8504, 10288, 10630, 12860, 17008, 21260, 25720, 42520, 51440, 85040, 683509, 1367018, 2734036, 3417545, 5468072, 6835090, 10936144, 13670180, 27340360, 54680720]

約数ペア:

[(1, 54680720), (2, 27340360), (4, 13670180), (5, 10936144), (8, 6835090), (10, 5468072), (16, 3417545), (20, 2734036), (40, 1367018), (80, 683509), (643, 85040), (1063, 51440), (1286, 42520), (2126, 25720), (2572, 21260), (3215, 17008), (4252, 12860), (5144, 10630), (5315, 10288), (6430, 8504)]