280019720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{368447}}^1$

素因数の和:368477

約数の個数: 32

約数和(自身を含む): 663206400

約数和(自身を除く): 383186680

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 368447, 736894, 1473788, 1842235, 2947576, 3684470, 7000493, 7368940, 14000986, 14737880, 28001972, 35002465, 56003944, 70004930, 140009860, 280019720]

約数ペア:

[(1, 280019720), (2, 140009860), (4, 70004930), (5, 56003944), (8, 35002465), (10, 28001972), (19, 14737880), (20, 14000986), (38, 7368940), (40, 7000493), (76, 3684470), (95, 2947576), (152, 1842235), (190, 1473788), (380, 736894), (760, 368447)]