199879260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{475903}}^1$

素因数の和:475922

約数の個数: 48

約数和(自身を含む): 639614976

約数和(自身を除く): 439735716

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 475903, 951806, 1427709, 1903612, 2379515, 2855418, 3331321, 4759030, 5710836, 6662642, 7138545, 9518060, 9993963, 13325284, 14277090, 16656605, 19987926, 28554180, 33313210, 39975852, 49969815, 66626420, 99939630, 199879260]

約数ペア:

[(1, 199879260), (2, 99939630), (3, 66626420), (4, 49969815), (5, 39975852), (6, 33313210), (7, 28554180), (10, 19987926), (12, 16656605), (14, 14277090), (15, 13325284), (20, 9993963), (21, 9518060), (28, 7138545), (30, 6662642), (35, 5710836), (42, 4759030), (60, 3331321), (70, 2855418), (84, 2379515), (105, 1903612), (140, 1427709), (210, 951806), (420, 475903)]