2784112880

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{319279}}^1$

素因数の和:319401

約数の個数: 40

約数和(自身を含む): 6532468800

約数和(自身を除く): 3748355920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1744, 2180, 4360, 8720, 319279, 638558, 1277116, 1596395, 2554232, 3192790, 5108464, 6385580, 12771160, 25542320, 34801411, 69602822, 139205644, 174007055, 278411288, 348014110, 556822576, 696028220, 1392056440, 2784112880]

約数ペア:

[(1, 2784112880), (2, 1392056440), (4, 696028220), (5, 556822576), (8, 348014110), (10, 278411288), (16, 174007055), (20, 139205644), (40, 69602822), (80, 34801411), (109, 25542320), (218, 12771160), (436, 6385580), (545, 5108464), (872, 3192790), (1090, 2554232), (1744, 1596395), (2180, 1277116), (4360, 638558), (8720, 319279)]