9901000

素因数分解:

$2^3\times 5^3\times {\mathrm{9901}}^1$

素因数の和:9922

約数の個数: 32

約数和(自身を含む): 23170680

約数和(自身を除く): 13269680

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 1000, 9901, 19802, 39604, 49505, 79208, 99010, 198020, 247525, 396040, 495050, 990100, 1237625, 1980200, 2475250, 4950500, 9901000]

約数ペア:

[(1, 9901000), (2, 4950500), (4, 2475250), (5, 1980200), (8, 1237625), (10, 990100), (20, 495050), (25, 396040), (40, 247525), (50, 198020), (100, 99010), (125, 79208), (200, 49505), (250, 39604), (500, 19802), (1000, 9901)]