66702896

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{320687}}^1$

素因数の和:320708

約数の個数: 20

約数和(自身を含む): 139178592

約数和(自身を除く): 72475696

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 320687, 641374, 1282748, 2565496, 4168931, 5130992, 8337862, 16675724, 33351448, 66702896]

約数ペア:

[(1, 66702896), (2, 33351448), (4, 16675724), (8, 8337862), (13, 5130992), (16, 4168931), (26, 2565496), (52, 1282748), (104, 641374), (208, 320687)]