28973560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1$

素因数の和:461

約数の個数: 128

約数和(自身を含む): 85017600

約数和(自身を除く): 56044040

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 23, 28, 35, 40, 44, 46, 55, 56, 70, 77, 88, 92, 110, 115, 140, 154, 161, 184, 220, 230, 253, 280, 308, 322, 385, 409, 440, 460, 506, 616, 644, 770, 805, 818, 920, 1012, 1265, 1288, 1540, 1610, 1636, 1771, 2024, 2045, 2530, 2863, 3080, 3220, 3272, 3542, 4090, 4499, 5060, 5726, 6440, 7084, 8180, 8855, 8998, 9407, 10120, 11452, 14168, 14315, 16360, 17710, 17996, 18814, 22495, 22904, 28630, 31493, 35420, 35992, 37628, 44990, 47035, 57260, 62986, 65849, 70840, 75256, 89980, 94070, 103477, 114520, 125972, 131698, 157465, 179960, 188140, 206954, 251944, 263396, 314930, 329245, 376280, 413908, 517385, 526792, 629860, 658490, 724339, 827816, 1034770, 1259720, 1316980, 1448678, 2069540, 2633960, 2897356, 3621695, 4139080, 5794712, 7243390, 14486780, 28973560]

約数ペア:

[(1, 28973560), (2, 14486780), (4, 7243390), (5, 5794712), (7, 4139080), (8, 3621695), (10, 2897356), (11, 2633960), (14, 2069540), (20, 1448678), (22, 1316980), (23, 1259720), (28, 1034770), (35, 827816), (40, 724339), (44, 658490), (46, 629860), (55, 526792), (56, 517385), (70, 413908), (77, 376280), (88, 329245), (92, 314930), (110, 263396), (115, 251944), (140, 206954), (154, 188140), (161, 179960), (184, 157465), (220, 131698), (230, 125972), (253, 114520), (280, 103477), (308, 94070), (322, 89980), (385, 75256), (409, 70840), (440, 65849), (460, 62986), (506, 57260), (616, 47035), (644, 44990), (770, 37628), (805, 35992), (818, 35420), (920, 31493), (1012, 28630), (1265, 22904), (1288, 22495), (1540, 18814), (1610, 17996), (1636, 17710), (1771, 16360), (2024, 14315), (2045, 14168), (2530, 11452), (2863, 10120), (3080, 9407), (3220, 8998), (3272, 8855), (3542, 8180), (4090, 7084), (4499, 6440), (5060, 5726)]