28070240

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{389}}^1$

素因数の和:456

約数の個数: 96

約数和(自身を含む): 74299680

約数和(自身を除く): 46229440

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 41, 44, 55, 80, 82, 88, 110, 160, 164, 176, 205, 220, 328, 352, 389, 410, 440, 451, 656, 778, 820, 880, 902, 1312, 1556, 1640, 1760, 1804, 1945, 2255, 3112, 3280, 3608, 3890, 4279, 4510, 6224, 6560, 7216, 7780, 8558, 9020, 12448, 14432, 15560, 15949, 17116, 18040, 21395, 31120, 31898, 34232, 36080, 42790, 62240, 63796, 68464, 72160, 79745, 85580, 127592, 136928, 159490, 171160, 175439, 255184, 318980, 342320, 350878, 510368, 637960, 684640, 701756, 877195, 1275920, 1403512, 1754390, 2551840, 2807024, 3508780, 5614048, 7017560, 14035120, 28070240]

約数ペア:

[(1, 28070240), (2, 14035120), (4, 7017560), (5, 5614048), (8, 3508780), (10, 2807024), (11, 2551840), (16, 1754390), (20, 1403512), (22, 1275920), (32, 877195), (40, 701756), (41, 684640), (44, 637960), (55, 510368), (80, 350878), (82, 342320), (88, 318980), (110, 255184), (160, 175439), (164, 171160), (176, 159490), (205, 136928), (220, 127592), (328, 85580), (352, 79745), (389, 72160), (410, 68464), (440, 63796), (451, 62240), (656, 42790), (778, 36080), (820, 34232), (880, 31898), (902, 31120), (1312, 21395), (1556, 18040), (1640, 17116), (1760, 15949), (1804, 15560), (1945, 14432), (2255, 12448), (3112, 9020), (3280, 8558), (3608, 7780), (3890, 7216), (4279, 6560), (4510, 6224)]