3990100

素因数分解:

$2^2\times 5^2\times {\mathrm{39901}}^1$

素因数の和:39915

約数の個数: 18

約数和(自身を含む): 8658734

約数和(自身を除く): 4668634

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 39901, 79802, 159604, 199505, 399010, 798020, 997525, 1995050, 3990100]

約数ペア:

[(1, 3990100), (2, 1995050), (4, 997525), (5, 798020), (10, 399010), (20, 199505), (25, 159604), (50, 79802), (100, 39901)]