20120776720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1\times {\mathrm{2069}}^1$

素因数の和:2393

約数の個数: 160

約数和(自身を含む): 52448964480

約数和(自身を除く): 32328187760

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 43, 44, 55, 80, 86, 88, 110, 172, 176, 215, 220, 257, 344, 430, 440, 473, 514, 688, 860, 880, 946, 1028, 1285, 1720, 1892, 2056, 2069, 2365, 2570, 2827, 3440, 3784, 4112, 4138, 4730, 5140, 5654, 7568, 8276, 9460, 10280, 10345, 11051, 11308, 14135, 16552, 18920, 20560, 20690, 22102, 22616, 22759, 28270, 33104, 37840, 41380, 44204, 45232, 45518, 55255, 56540, 82760, 88408, 88967, 91036, 110510, 113080, 113795, 121561, 165520, 176816, 177934, 182072, 221020, 226160, 227590, 243122, 355868, 364144, 442040, 444835, 455180, 486244, 531733, 607805, 711736, 884080, 889670, 910360, 972488, 978637, 1063466, 1215610, 1423472, 1779340, 1820720, 1944976, 1957274, 2126932, 2431220, 2658665, 3558680, 3914548, 4253864, 4862440, 4893185, 5317330, 5849063, 7117360, 7829096, 8507728, 9724880, 9786370, 10634660, 11698126, 15658192, 19572740, 21269320, 22864519, 23396252, 29245315, 39145480, 42538640, 45729038, 46792504, 58490630, 78290960, 91458076, 93585008, 114322595, 116981260, 182916152, 228645190, 233962520, 251509709, 365832304, 457290380, 467925040, 503019418, 914580760, 1006038836, 1257548545, 1829161520, 2012077672, 2515097090, 4024155344, 5030194180, 10060388360, 20120776720]

約数ペア:

[(1, 20120776720), (2, 10060388360), (4, 5030194180), (5, 4024155344), (8, 2515097090), (10, 2012077672), (11, 1829161520), (16, 1257548545), (20, 1006038836), (22, 914580760), (40, 503019418), (43, 467925040), (44, 457290380), (55, 365832304), (80, 251509709), (86, 233962520), (88, 228645190), (110, 182916152), (172, 116981260), (176, 114322595), (215, 93585008), (220, 91458076), (257, 78290960), (344, 58490630), (430, 46792504), (440, 45729038), (473, 42538640), (514, 39145480), (688, 29245315), (860, 23396252), (880, 22864519), (946, 21269320), (1028, 19572740), (1285, 15658192), (1720, 11698126), (1892, 10634660), (2056, 9786370), (2069, 9724880), (2365, 8507728), (2570, 7829096), (2827, 7117360), (3440, 5849063), (3784, 5317330), (4112, 4893185), (4138, 4862440), (4730, 4253864), (5140, 3914548), (5654, 3558680), (7568, 2658665), (8276, 2431220), (9460, 2126932), (10280, 1957274), (10345, 1944976), (11051, 1820720), (11308, 1779340), (14135, 1423472), (16552, 1215610), (18920, 1063466), (20560, 978637), (20690, 972488), (22102, 910360), (22616, 889670), (22759, 884080), (28270, 711736), (33104, 607805), (37840, 531733), (41380, 486244), (44204, 455180), (45232, 444835), (45518, 442040), (55255, 364144), (56540, 355868), (82760, 243122), (88408, 227590), (88967, 226160), (91036, 221020), (110510, 182072), (113080, 177934), (113795, 176816), (121561, 165520)]