19988770

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{307}}^1\times {\mathrm{383}}^1$

素因数の和:714

約数の個数: 32

約数和(自身を含む): 38320128

約数和(自身を除く): 18331358

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 307, 383, 614, 766, 1535, 1915, 3070, 3830, 5219, 6511, 10438, 13022, 26095, 32555, 52190, 65110, 117581, 235162, 587905, 1175810, 1998877, 3997754, 9994385, 19988770]

約数ペア:

[(1, 19988770), (2, 9994385), (5, 3997754), (10, 1998877), (17, 1175810), (34, 587905), (85, 235162), (170, 117581), (307, 65110), (383, 52190), (614, 32555), (766, 26095), (1535, 13022), (1915, 10438), (3070, 6511), (3830, 5219)]