20123983480

素因数分解:

$2^3\times 5^1\times {\mathrm{503099587}}^1$

素因数の和:503099598

約数の個数: 16

約数和(自身を含む): 45278962920

約数和(自身を除く): 25154979440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 503099587, 1006199174, 2012398348, 2515497935, 4024796696, 5030995870, 10061991740, 20123983480]

約数ペア:

[(1, 20123983480), (2, 10061991740), (4, 5030995870), (5, 4024796696), (8, 2515497935), (10, 2012398348), (20, 1006199174), (40, 503099587)]