28220080

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{313}}^1$

素因数の和:363

約数の個数: 120

約数和(自身を含む): 79896672

約数和(自身を除く): 51676592

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, 313, 322, 368, 392, 460, 490, 560, 626, 644, 784, 805, 920, 980, 1127, 1252, 1288, 1565, 1610, 1840, 1960, 2191, 2254, 2504, 2576, 3130, 3220, 3920, 4382, 4508, 5008, 5635, 6260, 6440, 7199, 8764, 9016, 10955, 11270, 12520, 12880, 14398, 15337, 17528, 18032, 21910, 22540, 25040, 28796, 30674, 35056, 35995, 43820, 45080, 50393, 57592, 61348, 71990, 76685, 87640, 90160, 100786, 115184, 122696, 143980, 153370, 175280, 201572, 245392, 251965, 287960, 306740, 352751, 403144, 503930, 575920, 613480, 705502, 806288, 1007860, 1226960, 1411004, 1763755, 2015720, 2822008, 3527510, 4031440, 5644016, 7055020, 14110040, 28220080]

約数ペア:

[(1, 28220080), (2, 14110040), (4, 7055020), (5, 5644016), (7, 4031440), (8, 3527510), (10, 2822008), (14, 2015720), (16, 1763755), (20, 1411004), (23, 1226960), (28, 1007860), (35, 806288), (40, 705502), (46, 613480), (49, 575920), (56, 503930), (70, 403144), (80, 352751), (92, 306740), (98, 287960), (112, 251965), (115, 245392), (140, 201572), (161, 175280), (184, 153370), (196, 143980), (230, 122696), (245, 115184), (280, 100786), (313, 90160), (322, 87640), (368, 76685), (392, 71990), (460, 61348), (490, 57592), (560, 50393), (626, 45080), (644, 43820), (784, 35995), (805, 35056), (920, 30674), (980, 28796), (1127, 25040), (1252, 22540), (1288, 21910), (1565, 18032), (1610, 17528), (1840, 15337), (1960, 14398), (2191, 12880), (2254, 12520), (2504, 11270), (2576, 10955), (3130, 9016), (3220, 8764), (3920, 7199), (4382, 6440), (4508, 6260), (5008, 5635)]