28580720

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{317}}^1$

素因数の和:367

約数の個数: 120

約数和(自身を含む): 80914464

約数和(自身を除く): 52333744

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 49, 56, 70, 80, 92, 98, 112, 115, 140, 161, 184, 196, 230, 245, 280, 317, 322, 368, 392, 460, 490, 560, 634, 644, 784, 805, 920, 980, 1127, 1268, 1288, 1585, 1610, 1840, 1960, 2219, 2254, 2536, 2576, 3170, 3220, 3920, 4438, 4508, 5072, 5635, 6340, 6440, 7291, 8876, 9016, 11095, 11270, 12680, 12880, 14582, 15533, 17752, 18032, 22190, 22540, 25360, 29164, 31066, 35504, 36455, 44380, 45080, 51037, 58328, 62132, 72910, 77665, 88760, 90160, 102074, 116656, 124264, 145820, 155330, 177520, 204148, 248528, 255185, 291640, 310660, 357259, 408296, 510370, 583280, 621320, 714518, 816592, 1020740, 1242640, 1429036, 1786295, 2041480, 2858072, 3572590, 4082960, 5716144, 7145180, 14290360, 28580720]

約数ペア:

[(1, 28580720), (2, 14290360), (4, 7145180), (5, 5716144), (7, 4082960), (8, 3572590), (10, 2858072), (14, 2041480), (16, 1786295), (20, 1429036), (23, 1242640), (28, 1020740), (35, 816592), (40, 714518), (46, 621320), (49, 583280), (56, 510370), (70, 408296), (80, 357259), (92, 310660), (98, 291640), (112, 255185), (115, 248528), (140, 204148), (161, 177520), (184, 155330), (196, 145820), (230, 124264), (245, 116656), (280, 102074), (317, 90160), (322, 88760), (368, 77665), (392, 72910), (460, 62132), (490, 58328), (560, 51037), (634, 45080), (644, 44380), (784, 36455), (805, 35504), (920, 31066), (980, 29164), (1127, 25360), (1268, 22540), (1288, 22190), (1585, 18032), (1610, 17752), (1840, 15533), (1960, 14582), (2219, 12880), (2254, 12680), (2536, 11270), (2576, 11095), (3170, 9016), (3220, 8876), (3920, 7291), (4438, 6440), (4508, 6340), (5072, 5635)]