201680120

素因数分解:

$2^3\times 5^1\times {\mathrm{349}}^1\times {\mathrm{14447}}^1$

素因数の和:14807

約数の個数: 32

約数和(自身を含む): 455112000

約数和(自身を除く): 253431880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 349, 698, 1396, 1745, 2792, 3490, 6980, 13960, 14447, 28894, 57788, 72235, 115576, 144470, 288940, 577880, 5042003, 10084006, 20168012, 25210015, 40336024, 50420030, 100840060, 201680120]

約数ペア:

[(1, 201680120), (2, 100840060), (4, 50420030), (5, 40336024), (8, 25210015), (10, 20168012), (20, 10084006), (40, 5042003), (349, 577880), (698, 288940), (1396, 144470), (1745, 115576), (2792, 72235), (3490, 57788), (6980, 28894), (13960, 14447)]