289200440

素因数分解:

$2^3\times 5^1\times {\mathrm{499}}^1\times {\mathrm{14489}}^1$

素因数の和:14999

約数の個数: 32

約数和(自身を含む): 652050000

約数和(自身を除く): 362849560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 499, 998, 1996, 2495, 3992, 4990, 9980, 14489, 19960, 28978, 57956, 72445, 115912, 144890, 289780, 579560, 7230011, 14460022, 28920044, 36150055, 57840088, 72300110, 144600220, 289200440]

約数ペア:

[(1, 289200440), (2, 144600220), (4, 72300110), (5, 57840088), (8, 36150055), (10, 28920044), (20, 14460022), (40, 7230011), (499, 579560), (998, 289780), (1996, 144890), (2495, 115912), (3992, 72445), (4990, 57956), (9980, 28978), (14489, 19960)]