20195977804

素因数分解:

$2^2\times {\mathrm{509}}^1\times {\mathrm{9919439}}^1$

素因数の和:9919952

約数の個数: 12

約数和(自身を含む): 35412400800

約数和(自身を除く): 15216422996

約数列:

[1, 2, 4, 509, 1018, 2036, 9919439, 19838878, 39677756, 5048994451, 10097988902, 20195977804]

約数ペア:

[(1, 20195977804), (2, 10097988902), (4, 5048994451), (509, 39677756), (1018, 19838878), (2036, 9919439)]