81678070

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{189949}}^1$

素因数の和:189999

約数の個数: 16

約数和(自身を含む): 150440400

約数和(自身を除く): 68762330

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 189949, 379898, 949745, 1899490, 8167807, 16335614, 40839035, 81678070]

約数ペア:

[(1, 81678070), (2, 40839035), (5, 16335614), (10, 8167807), (43, 1899490), (86, 949745), (215, 379898), (430, 189949)]