639221520

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{233}}^1$

素因数の和:350

約数の個数: 320

約数和(自身を含む): 2406703104

約数和(自身を除く): 1767481584

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 48, 56, 60, 69, 70, 71, 80, 84, 92, 105, 112, 115, 120, 138, 140, 142, 161, 168, 184, 210, 213, 230, 233, 240, 276, 280, 284, 322, 336, 345, 355, 368, 420, 426, 460, 466, 483, 497, 552, 560, 568, 644, 690, 699, 710, 805, 840, 852, 920, 932, 966, 994, 1065, 1104, 1136, 1165, 1288, 1380, 1398, 1420, 1491, 1610, 1631, 1633, 1680, 1704, 1840, 1864, 1932, 1988, 2130, 2330, 2415, 2485, 2576, 2760, 2796, 2840, 2982, 3220, 3262, 3266, 3408, 3495, 3728, 3864, 3976, 4260, 4660, 4830, 4893, 4899, 4970, 5359, 5520, 5592, 5680, 5964, 6440, 6524, 6532, 6990, 7455, 7728, 7952, 8155, 8165, 8520, 9320, 9660, 9786, 9798, 9940, 10718, 11184, 11431, 11928, 12880, 13048, 13064, 13980, 14910, 16077, 16310, 16330, 16543, 17040, 18640, 19320, 19572, 19596, 19880, 21436, 22862, 23856, 24465, 24495, 26096, 26128, 26795, 27960, 29820, 32154, 32620, 32660, 33086, 34293, 37513, 38640, 39144, 39192, 39760, 42872, 45724, 48930, 48990, 49629, 53590, 55920, 57155, 59640, 64308, 65240, 65320, 66172, 68586, 75026, 78288, 78384, 80385, 82715, 85744, 91448, 97860, 97980, 99258, 107180, 112539, 114310, 115801, 119280, 128616, 130480, 130640, 132344, 137172, 150052, 160770, 165430, 171465, 182896, 187565, 195720, 195960, 198516, 214360, 225078, 228620, 231602, 248145, 257232, 264688, 274344, 300104, 321540, 330860, 342930, 347403, 375130, 380489, 391440, 391920, 397032, 428720, 450156, 457240, 463204, 496290, 548688, 562695, 579005, 600208, 643080, 661720, 685860, 694806, 750260, 760978, 794064, 900312, 914480, 926408, 992580, 1125390, 1141467, 1158010, 1286160, 1323440, 1371720, 1389612, 1500520, 1521956, 1737015, 1800624, 1852816, 1902445, 1985160, 2250780, 2282934, 2316020, 2663423, 2743440, 2779224, 3001040, 3043912, 3474030, 3804890, 3970320, 4501560, 4565868, 4632040, 5326846, 5558448, 5707335, 6087824, 6948060, 7609780, 7990269, 9003120, 9131736, 9264080, 10653692, 11414670, 13317115, 13896120, 15219560, 15980538, 18263472, 21307384, 22829340, 26634230, 27792240, 30439120, 31961076, 39951345, 42614768, 45658680, 53268460, 63922152, 79902690, 91317360, 106536920, 127844304, 159805380, 213073840, 319610760, 639221520]

約数ペア:

[(1, 639221520), (2, 319610760), (3, 213073840), (4, 159805380), (5, 127844304), (6, 106536920), (7, 91317360), (8, 79902690), (10, 63922152), (12, 53268460), (14, 45658680), (15, 42614768), (16, 39951345), (20, 31961076), (21, 30439120), (23, 27792240), (24, 26634230), (28, 22829340), (30, 21307384), (35, 18263472), (40, 15980538), (42, 15219560), (46, 13896120), (48, 13317115), (56, 11414670), (60, 10653692), (69, 9264080), (70, 9131736), (71, 9003120), (80, 7990269), (84, 7609780), (92, 6948060), (105, 6087824), (112, 5707335), (115, 5558448), (120, 5326846), (138, 4632040), (140, 4565868), (142, 4501560), (161, 3970320), (168, 3804890), (184, 3474030), (210, 3043912), (213, 3001040), (230, 2779224), (233, 2743440), (240, 2663423), (276, 2316020), (280, 2282934), (284, 2250780), (322, 1985160), (336, 1902445), (345, 1852816), (355, 1800624), (368, 1737015), (420, 1521956), (426, 1500520), (460, 1389612), (466, 1371720), (483, 1323440), (497, 1286160), (552, 1158010), (560, 1141467), (568, 1125390), (644, 992580), (690, 926408), (699, 914480), (710, 900312), (805, 794064), (840, 760978), (852, 750260), (920, 694806), (932, 685860), (966, 661720), (994, 643080), (1065, 600208), (1104, 579005), (1136, 562695), (1165, 548688), (1288, 496290), (1380, 463204), (1398, 457240), (1420, 450156), (1491, 428720), (1610, 397032), (1631, 391920), (1633, 391440), (1680, 380489), (1704, 375130), (1840, 347403), (1864, 342930), (1932, 330860), (1988, 321540), (2130, 300104), (2330, 274344), (2415, 264688), (2485, 257232), (2576, 248145), (2760, 231602), (2796, 228620), (2840, 225078), (2982, 214360), (3220, 198516), (3262, 195960), (3266, 195720), (3408, 187565), (3495, 182896), (3728, 171465), (3864, 165430), (3976, 160770), (4260, 150052), (4660, 137172), (4830, 132344), (4893, 130640), (4899, 130480), (4970, 128616), (5359, 119280), (5520, 115801), (5592, 114310), (5680, 112539), (5964, 107180), (6440, 99258), (6524, 97980), (6532, 97860), (6990, 91448), (7455, 85744), (7728, 82715), (7952, 80385), (8155, 78384), (8165, 78288), (8520, 75026), (9320, 68586), (9660, 66172), (9786, 65320), (9798, 65240), (9940, 64308), (10718, 59640), (11184, 57155), (11431, 55920), (11928, 53590), (12880, 49629), (13048, 48990), (13064, 48930), (13980, 45724), (14910, 42872), (16077, 39760), (16310, 39192), (16330, 39144), (16543, 38640), (17040, 37513), (18640, 34293), (19320, 33086), (19572, 32660), (19596, 32620), (19880, 32154), (21436, 29820), (22862, 27960), (23856, 26795), (24465, 26128), (24495, 26096)]