81808320

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:219

約数の個数: 224

約数和(自身を含む): 290267136

約数和(自身を除く): 208458816

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 61, 64, 66, 80, 88, 96, 110, 120, 122, 127, 132, 160, 165, 176, 183, 192, 220, 240, 244, 254, 264, 305, 320, 330, 352, 366, 381, 440, 480, 488, 508, 528, 610, 635, 660, 671, 704, 732, 762, 880, 915, 960, 976, 1016, 1056, 1220, 1270, 1320, 1342, 1397, 1464, 1524, 1760, 1830, 1905, 1952, 2013, 2032, 2112, 2440, 2540, 2640, 2684, 2794, 2928, 3048, 3355, 3520, 3660, 3810, 3904, 4026, 4064, 4191, 4880, 5080, 5280, 5368, 5588, 5856, 6096, 6710, 6985, 7320, 7620, 7747, 8052, 8128, 8382, 9760, 10065, 10160, 10560, 10736, 11176, 11712, 12192, 13420, 13970, 14640, 15240, 15494, 16104, 16764, 19520, 20130, 20320, 20955, 21472, 22352, 23241, 24384, 26840, 27940, 29280, 30480, 30988, 32208, 33528, 38735, 40260, 40640, 41910, 42944, 44704, 46482, 53680, 55880, 58560, 60960, 61976, 64416, 67056, 77470, 80520, 83820, 85217, 89408, 92964, 107360, 111760, 116205, 121920, 123952, 128832, 134112, 154940, 161040, 167640, 170434, 185928, 214720, 223520, 232410, 247904, 255651, 268224, 309880, 322080, 335280, 340868, 371856, 426085, 447040, 464820, 495808, 511302, 619760, 644160, 670560, 681736, 743712, 852170, 929640, 1022604, 1239520, 1278255, 1341120, 1363472, 1487424, 1704340, 1859280, 2045208, 2479040, 2556510, 2726944, 3408680, 3718560, 4090416, 5113020, 5453888, 6817360, 7437120, 8180832, 10226040, 13634720, 16361664, 20452080, 27269440, 40904160, 81808320]

約数ペア:

[(1, 81808320), (2, 40904160), (3, 27269440), (4, 20452080), (5, 16361664), (6, 13634720), (8, 10226040), (10, 8180832), (11, 7437120), (12, 6817360), (15, 5453888), (16, 5113020), (20, 4090416), (22, 3718560), (24, 3408680), (30, 2726944), (32, 2556510), (33, 2479040), (40, 2045208), (44, 1859280), (48, 1704340), (55, 1487424), (60, 1363472), (61, 1341120), (64, 1278255), (66, 1239520), (80, 1022604), (88, 929640), (96, 852170), (110, 743712), (120, 681736), (122, 670560), (127, 644160), (132, 619760), (160, 511302), (165, 495808), (176, 464820), (183, 447040), (192, 426085), (220, 371856), (240, 340868), (244, 335280), (254, 322080), (264, 309880), (305, 268224), (320, 255651), (330, 247904), (352, 232410), (366, 223520), (381, 214720), (440, 185928), (480, 170434), (488, 167640), (508, 161040), (528, 154940), (610, 134112), (635, 128832), (660, 123952), (671, 121920), (704, 116205), (732, 111760), (762, 107360), (880, 92964), (915, 89408), (960, 85217), (976, 83820), (1016, 80520), (1056, 77470), (1220, 67056), (1270, 64416), (1320, 61976), (1342, 60960), (1397, 58560), (1464, 55880), (1524, 53680), (1760, 46482), (1830, 44704), (1905, 42944), (1952, 41910), (2013, 40640), (2032, 40260), (2112, 38735), (2440, 33528), (2540, 32208), (2640, 30988), (2684, 30480), (2794, 29280), (2928, 27940), (3048, 26840), (3355, 24384), (3520, 23241), (3660, 22352), (3810, 21472), (3904, 20955), (4026, 20320), (4064, 20130), (4191, 19520), (4880, 16764), (5080, 16104), (5280, 15494), (5368, 15240), (5588, 14640), (5856, 13970), (6096, 13420), (6710, 12192), (6985, 11712), (7320, 11176), (7620, 10736), (7747, 10560), (8052, 10160), (8128, 10065), (8382, 9760)]