2580140

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:182

約数の個数: 48

約数和(自身を含む): 5806080

約数和(自身を除く): 3225940

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 71, 79, 92, 115, 142, 158, 230, 284, 316, 355, 395, 460, 710, 790, 1420, 1580, 1633, 1817, 3266, 3634, 5609, 6532, 7268, 8165, 9085, 11218, 16330, 18170, 22436, 28045, 32660, 36340, 56090, 112180, 129007, 258014, 516028, 645035, 1290070, 2580140]

約数ペア:

[(1, 2580140), (2, 1290070), (4, 645035), (5, 516028), (10, 258014), (20, 129007), (23, 112180), (46, 56090), (71, 36340), (79, 32660), (92, 28045), (115, 22436), (142, 18170), (158, 16330), (230, 11218), (284, 9085), (316, 8165), (355, 7268), (395, 6532), (460, 5609), (710, 3634), (790, 3266), (1420, 1817), (1580, 1633)]