81157496560

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{12601}}^1$

素因数の和:12712

約数の個数: 240

約数和(自身を含む): 230871866112

約数和(自身を除く): 149714369552

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 49, 53, 56, 62, 70, 80, 98, 106, 112, 124, 140, 155, 196, 212, 217, 245, 248, 265, 280, 310, 371, 392, 424, 434, 490, 496, 530, 560, 620, 742, 784, 848, 868, 980, 1060, 1085, 1240, 1484, 1519, 1643, 1736, 1855, 1960, 2120, 2170, 2480, 2597, 2968, 3038, 3286, 3472, 3710, 3920, 4240, 4340, 5194, 5936, 6076, 6572, 7420, 7595, 8215, 8680, 10388, 11501, 12152, 12601, 12985, 13144, 14840, 15190, 16430, 17360, 20776, 23002, 24304, 25202, 25970, 26288, 29680, 30380, 32860, 41552, 46004, 50404, 51940, 57505, 60760, 63005, 65720, 80507, 88207, 92008, 100808, 103880, 115010, 121520, 126010, 131440, 161014, 176414, 184016, 201616, 207760, 230020, 252020, 322028, 352828, 390631, 402535, 441035, 460040, 504040, 617449, 644056, 667853, 705656, 781262, 805070, 882070, 920080, 1008080, 1234898, 1288112, 1335706, 1411312, 1562524, 1610140, 1764140, 1953155, 2469796, 2671412, 2734417, 3087245, 3125048, 3220280, 3339265, 3528280, 3906310, 4674971, 4939592, 5342824, 5468834, 6174490, 6250096, 6440560, 6678530, 7056560, 7812620, 9349942, 9879184, 10685648, 10937668, 12348980, 13357060, 13672085, 15625240, 18699884, 19140919, 20703443, 21875336, 23374855, 24697960, 26714120, 27344170, 31250480, 32724797, 37399768, 38281838, 41406886, 43750672, 46749710, 49395920, 53428240, 54688340, 65449594, 74799536, 76563676, 82813772, 93499420, 95704595, 103517215, 109376680, 130899188, 144924101, 153127352, 163623985, 165627544, 186998840, 191409190, 207034430, 218753360, 261798376, 289848202, 306254704, 327247970, 331255088, 373997680, 382818380, 414068860, 523596752, 579696404, 654495940, 724620505, 765636760, 828137720, 1014468707, 1159392808, 1308991880, 1449241010, 1531273520, 1656275440, 2028937414, 2318785616, 2617983760, 2898482020, 4057874828, 5072343535, 5796964040, 8115749656, 10144687070, 11593928080, 16231499312, 20289374140, 40578748280, 81157496560]

約数ペア:

[(1, 81157496560), (2, 40578748280), (4, 20289374140), (5, 16231499312), (7, 11593928080), (8, 10144687070), (10, 8115749656), (14, 5796964040), (16, 5072343535), (20, 4057874828), (28, 2898482020), (31, 2617983760), (35, 2318785616), (40, 2028937414), (49, 1656275440), (53, 1531273520), (56, 1449241010), (62, 1308991880), (70, 1159392808), (80, 1014468707), (98, 828137720), (106, 765636760), (112, 724620505), (124, 654495940), (140, 579696404), (155, 523596752), (196, 414068860), (212, 382818380), (217, 373997680), (245, 331255088), (248, 327247970), (265, 306254704), (280, 289848202), (310, 261798376), (371, 218753360), (392, 207034430), (424, 191409190), (434, 186998840), (490, 165627544), (496, 163623985), (530, 153127352), (560, 144924101), (620, 130899188), (742, 109376680), (784, 103517215), (848, 95704595), (868, 93499420), (980, 82813772), (1060, 76563676), (1085, 74799536), (1240, 65449594), (1484, 54688340), (1519, 53428240), (1643, 49395920), (1736, 46749710), (1855, 43750672), (1960, 41406886), (2120, 38281838), (2170, 37399768), (2480, 32724797), (2597, 31250480), (2968, 27344170), (3038, 26714120), (3286, 24697960), (3472, 23374855), (3710, 21875336), (3920, 20703443), (4240, 19140919), (4340, 18699884), (5194, 15625240), (5936, 13672085), (6076, 13357060), (6572, 12348980), (7420, 10937668), (7595, 10685648), (8215, 9879184), (8680, 9349942), (10388, 7812620), (11501, 7056560), (12152, 6678530), (12601, 6440560), (12985, 6250096), (13144, 6174490), (14840, 5468834), (15190, 5342824), (16430, 4939592), (17360, 4674971), (20776, 3906310), (23002, 3528280), (24304, 3339265), (25202, 3220280), (25970, 3125048), (26288, 3087245), (29680, 2734417), (30380, 2671412), (32860, 2469796), (41552, 1953155), (46004, 1764140), (50404, 1610140), (51940, 1562524), (57505, 1411312), (60760, 1335706), (63005, 1288112), (65720, 1234898), (80507, 1008080), (88207, 920080), (92008, 882070), (100808, 805070), (103880, 781262), (115010, 705656), (121520, 667853), (126010, 644056), (131440, 617449), (161014, 504040), (176414, 460040), (184016, 441035), (201616, 402535), (207760, 390631), (230020, 352828), (252020, 322028)]