1981647808

素因数分解:

$2^6\times 7^2\times {\mathrm{631903}}^1$

素因数の和:631929

約数の個数: 42

約数和(自身を含む): 4574353056

約数和(自身を除く): 2592705248

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 196, 224, 392, 448, 784, 1568, 3136, 631903, 1263806, 2527612, 4423321, 5055224, 8846642, 10110448, 17693284, 20220896, 30963247, 35386568, 40441792, 61926494, 70773136, 123852988, 141546272, 247705976, 283092544, 495411952, 990823904, 1981647808]

約数ペア:

[(1, 1981647808), (2, 990823904), (4, 495411952), (7, 283092544), (8, 247705976), (14, 141546272), (16, 123852988), (28, 70773136), (32, 61926494), (49, 40441792), (56, 35386568), (64, 30963247), (98, 20220896), (112, 17693284), (196, 10110448), (224, 8846642), (392, 5055224), (448, 4423321), (784, 2527612), (1568, 1263806), (3136, 631903)]