204099560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{728927}}^1$

素因数の和:728945

約数の個数: 32

約数和(自身を含む): 524828160

約数和(自身を除く): 320728600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 728927, 1457854, 2915708, 3644635, 5102489, 5831416, 7289270, 10204978, 14578540, 20409956, 25512445, 29157080, 40819912, 51024890, 102049780, 204099560]

約数ペア:

[(1, 204099560), (2, 102049780), (4, 51024890), (5, 40819912), (7, 29157080), (8, 25512445), (10, 20409956), (14, 14578540), (20, 10204978), (28, 7289270), (35, 5831416), (40, 5102489), (56, 3644635), (70, 2915708), (140, 1457854), (280, 728927)]