134438440

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{5227}}^1$

素因数の和:5881

約数の個数: 32

約数和(自身を含む): 303014880

約数和(自身を除く): 168576440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 1286, 2572, 3215, 5144, 5227, 6430, 10454, 12860, 20908, 25720, 26135, 41816, 52270, 104540, 209080, 3360961, 6721922, 13443844, 16804805, 26887688, 33609610, 67219220, 134438440]

約数ペア:

[(1, 134438440), (2, 67219220), (4, 33609610), (5, 26887688), (8, 16804805), (10, 13443844), (20, 6721922), (40, 3360961), (643, 209080), (1286, 104540), (2572, 52270), (3215, 41816), (5144, 26135), (5227, 25720), (6430, 20908), (10454, 12860)]