2783001080

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{638303}}^1$

素因数の和:638423

約数の個数: 32

約数和(自身を含む): 6319209600

約数和(自身を除く): 3536208520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 638303, 1276606, 2553212, 3191515, 5106424, 6383030, 12766060, 25532120, 69575027, 139150054, 278300108, 347875135, 556600216, 695750270, 1391500540, 2783001080]

約数ペア:

[(1, 2783001080), (2, 1391500540), (4, 695750270), (5, 556600216), (8, 347875135), (10, 278300108), (20, 139150054), (40, 69575027), (109, 25532120), (218, 12766060), (436, 6383030), (545, 5106424), (872, 3191515), (1090, 2553212), (2180, 1276606), (4360, 638303)]