66603472

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{320209}}^1$

素因数の和:320230

約数の個数: 20

約数和(自身を含む): 138971140

約数和(自身を除く): 72367668

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 320209, 640418, 1280836, 2561672, 4162717, 5123344, 8325434, 16650868, 33301736, 66603472]

約数ペア:

[(1, 66603472), (2, 33301736), (4, 16650868), (8, 8325434), (13, 5123344), (16, 4162717), (26, 2561672), (52, 1280836), (104, 640418), (208, 320209)]