668897128

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{4400639}}^1$

素因数の和:4400664

約数の個数: 16

約数和(自身を含む): 1320192000

約数和(自身を除く): 651294872

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 4400639, 8801278, 17602556, 35205112, 83612141, 167224282, 334448564, 668897128]

約数ペア:

[(1, 668897128), (2, 334448564), (4, 167224282), (8, 83612141), (19, 35205112), (38, 17602556), (76, 8801278), (152, 4400639)]