128976428

素因数分解:

$2^2\times 7^2\times {\mathrm{658043}}^1$

素因数の和:658061

約数の個数: 18

約数和(自身を含む): 262559556

約数和(自身を除く): 133583128

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 658043, 1316086, 2632172, 4606301, 9212602, 18425204, 32244107, 64488214, 128976428]

約数ペア:

[(1, 128976428), (2, 64488214), (4, 32244107), (7, 18425204), (14, 9212602), (28, 4606301), (49, 2632172), (98, 1316086), (196, 658043)]