1278989852

素因数分解:

$2^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{861853}}^1$

素因数の和:861917

約数の個数: 24

約数和(自身を含む): 2606246496

約数和(自身を除く): 1327256644

約数列:

[1, 2, 4, 7, 14, 28, 53, 106, 212, 371, 742, 1484, 861853, 1723706, 3447412, 6032971, 12065942, 24131884, 45678209, 91356418, 182712836, 319747463, 639494926, 1278989852]

約数ペア:

[(1, 1278989852), (2, 639494926), (4, 319747463), (7, 182712836), (14, 91356418), (28, 45678209), (53, 24131884), (106, 12065942), (212, 6032971), (371, 3447412), (742, 1723706), (1484, 861853)]