128216690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{1831667}}^1$

素因数の和:1831681

約数の個数: 16

約数和(自身を含む): 263760192

約数和(自身を除く): 135543502

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 1831667, 3663334, 9158335, 12821669, 18316670, 25643338, 64108345, 128216690]

約数ペア:

[(1, 128216690), (2, 64108345), (5, 25643338), (7, 18316670), (10, 12821669), (14, 9158335), (35, 3663334), (70, 1831667)]