28810728

素因数分解:

$2^3\times 3^4\times {\mathrm{173}}^1\times {\mathrm{257}}^1$

素因数の和:448

約数の個数: 80

約数和(自身を含む): 81478980

約数和(自身を除く): 52668252

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 173, 216, 257, 324, 346, 514, 519, 648, 692, 771, 1028, 1038, 1384, 1542, 1557, 2056, 2076, 2313, 3084, 3114, 4152, 4626, 4671, 6168, 6228, 6939, 9252, 9342, 12456, 13878, 14013, 18504, 18684, 20817, 27756, 28026, 37368, 41634, 44461, 55512, 56052, 83268, 88922, 112104, 133383, 166536, 177844, 266766, 355688, 400149, 533532, 800298, 1067064, 1200447, 1600596, 2400894, 3201192, 3601341, 4801788, 7202682, 9603576, 14405364, 28810728]

約数ペア:

[(1, 28810728), (2, 14405364), (3, 9603576), (4, 7202682), (6, 4801788), (8, 3601341), (9, 3201192), (12, 2400894), (18, 1600596), (24, 1200447), (27, 1067064), (36, 800298), (54, 533532), (72, 400149), (81, 355688), (108, 266766), (162, 177844), (173, 166536), (216, 133383), (257, 112104), (324, 88922), (346, 83268), (514, 56052), (519, 55512), (648, 44461), (692, 41634), (771, 37368), (1028, 28026), (1038, 27756), (1384, 20817), (1542, 18684), (1557, 18504), (2056, 14013), (2076, 13878), (2313, 12456), (3084, 9342), (3114, 9252), (4152, 6939), (4626, 6228), (4671, 6168)]