208069880

素因数分解:

$2^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{16619}}^1$

素因数の和:16943

約数の個数: 32

約数和(自身を含む): 469681200

約数和(自身を除く): 261611320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313, 626, 1252, 1565, 2504, 3130, 6260, 12520, 16619, 33238, 66476, 83095, 132952, 166190, 332380, 664760, 5201747, 10403494, 20806988, 26008735, 41613976, 52017470, 104034940, 208069880]

約数ペア:

[(1, 208069880), (2, 104034940), (4, 52017470), (5, 41613976), (8, 26008735), (10, 20806988), (20, 10403494), (40, 5201747), (313, 664760), (626, 332380), (1252, 166190), (1565, 132952), (2504, 83095), (3130, 66476), (6260, 33238), (12520, 16619)]