2666571.00000000

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{245521}}^1$

素因数の和:245542

約数の個数: 20

約数和(自身を含む): 106556548

約数和(自身を除く): 55488180

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 245521, 491042, 982084, 1964168, 3191773, 3928336, 6383546, 12767092, 25534184, 51068368]

約数ペア:

[(1, 51068368), (2, 25534184), (4, 12767092), (8, 6383546), (13, 3928336), (16, 3191773), (26, 1964168), (52, 982084), (104, 491042), (208, 245521)]