220142456

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{639949}}^1$

素因数の和:639998

約数の個数: 16

約数和(自身を含む): 422367000

約数和(自身を除く): 202224544

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 639949, 1279898, 2559796, 5119592, 27517807, 55035614, 110071228, 220142456]

約数ペア:

[(1, 220142456), (2, 110071228), (4, 55035614), (8, 27517807), (43, 5119592), (86, 2559796), (172, 1279898), (344, 639949)]