123020920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{279593}}^1$

素因数の和:279615

約数の個数: 32

約数和(自身を含む): 301961520

約数和(自身を除く): 178940600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 279593, 559186, 1118372, 1397965, 2236744, 2795930, 3075523, 5591860, 6151046, 11183720, 12302092, 15377615, 24604184, 30755230, 61510460, 123020920]

約数ペア:

[(1, 123020920), (2, 61510460), (4, 30755230), (5, 24604184), (8, 15377615), (10, 12302092), (11, 11183720), (20, 6151046), (22, 5591860), (40, 3075523), (44, 2795930), (55, 2236744), (88, 1397965), (110, 1118372), (220, 559186), (440, 279593)]