30781520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{263}}^1$

素因数の和:313

約数の個数: 160

約数和(自身を含む): 94279680

約数和(自身を除く): 63498160

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 19, 20, 22, 28, 35, 38, 40, 44, 55, 56, 70, 76, 77, 80, 88, 95, 110, 112, 133, 140, 152, 154, 176, 190, 209, 220, 263, 266, 280, 304, 308, 380, 385, 418, 440, 526, 532, 560, 616, 665, 760, 770, 836, 880, 1045, 1052, 1064, 1232, 1315, 1330, 1463, 1520, 1540, 1672, 1841, 2090, 2104, 2128, 2630, 2660, 2893, 2926, 3080, 3344, 3682, 4180, 4208, 4997, 5260, 5320, 5786, 5852, 6160, 7315, 7364, 8360, 9205, 9994, 10520, 10640, 11572, 11704, 14465, 14630, 14728, 16720, 18410, 19988, 20251, 21040, 23144, 23408, 24985, 28930, 29260, 29456, 34979, 36820, 39976, 40502, 46288, 49970, 54967, 57860, 58520, 69958, 73640, 79952, 81004, 99940, 101255, 109934, 115720, 117040, 139916, 147280, 162008, 174895, 199880, 202510, 219868, 231440, 274835, 279832, 324016, 349790, 384769, 399760, 405020, 439736, 549670, 559664, 699580, 769538, 810040, 879472, 1099340, 1399160, 1539076, 1620080, 1923845, 2198680, 2798320, 3078152, 3847690, 4397360, 6156304, 7695380, 15390760, 30781520]

約数ペア:

[(1, 30781520), (2, 15390760), (4, 7695380), (5, 6156304), (7, 4397360), (8, 3847690), (10, 3078152), (11, 2798320), (14, 2198680), (16, 1923845), (19, 1620080), (20, 1539076), (22, 1399160), (28, 1099340), (35, 879472), (38, 810040), (40, 769538), (44, 699580), (55, 559664), (56, 549670), (70, 439736), (76, 405020), (77, 399760), (80, 384769), (88, 349790), (95, 324016), (110, 279832), (112, 274835), (133, 231440), (140, 219868), (152, 202510), (154, 199880), (176, 174895), (190, 162008), (209, 147280), (220, 139916), (263, 117040), (266, 115720), (280, 109934), (304, 101255), (308, 99940), (380, 81004), (385, 79952), (418, 73640), (440, 69958), (526, 58520), (532, 57860), (560, 54967), (616, 49970), (665, 46288), (760, 40502), (770, 39976), (836, 36820), (880, 34979), (1045, 29456), (1052, 29260), (1064, 28930), (1232, 24985), (1315, 23408), (1330, 23144), (1463, 21040), (1520, 20251), (1540, 19988), (1672, 18410), (1841, 16720), (2090, 14728), (2104, 14630), (2128, 14465), (2630, 11704), (2660, 11572), (2893, 10640), (2926, 10520), (3080, 9994), (3344, 9205), (3682, 8360), (4180, 7364), (4208, 7315), (4997, 6160), (5260, 5852), (5320, 5786)]