681781760

素因数分解:

$2^9\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:147

約数の個数: 240

約数和(自身を含む): 1880879616

約数和(自身を除く): 1199097856

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 64, 71, 80, 88, 110, 121, 124, 128, 142, 155, 160, 176, 220, 242, 248, 256, 284, 310, 320, 341, 352, 355, 440, 484, 496, 512, 568, 605, 620, 640, 682, 704, 710, 781, 880, 968, 992, 1136, 1210, 1240, 1280, 1364, 1408, 1420, 1562, 1705, 1760, 1936, 1984, 2201, 2272, 2420, 2480, 2560, 2728, 2816, 2840, 3124, 3410, 3520, 3751, 3872, 3905, 3968, 4402, 4544, 4840, 4960, 5456, 5632, 5680, 6248, 6820, 7040, 7502, 7744, 7810, 7936, 8591, 8804, 9088, 9680, 9920, 10912, 11005, 11360, 12496, 13640, 14080, 15004, 15488, 15620, 15872, 17182, 17608, 18176, 18755, 19360, 19840, 21824, 22010, 22720, 24211, 24992, 27280, 28160, 30008, 30976, 31240, 34364, 35216, 36352, 37510, 38720, 39680, 42955, 43648, 44020, 45440, 48422, 49984, 54560, 60016, 61952, 62480, 68728, 70432, 75020, 77440, 79360, 85910, 87296, 88040, 90880, 96844, 99968, 109120, 120032, 121055, 124960, 137456, 140864, 150040, 154880, 171820, 174592, 176080, 181760, 193688, 199936, 218240, 240064, 242110, 249920, 266321, 274912, 281728, 300080, 309760, 343640, 352160, 387376, 399872, 436480, 480128, 484220, 499840, 532642, 549824, 563456, 600160, 687280, 704320, 774752, 872960, 960256, 968440, 999680, 1065284, 1099648, 1126912, 1200320, 1331605, 1374560, 1408640, 1549504, 1920512, 1936880, 1999360, 2130568, 2199296, 2400640, 2663210, 2749120, 2817280, 3099008, 3873760, 4261136, 4398592, 4801280, 5326420, 5498240, 5634560, 6198016, 7747520, 8522272, 9602560, 10652840, 10996480, 12396032, 15495040, 17044544, 21305680, 21992960, 30990080, 34089088, 42611360, 61980160, 68178176, 85222720, 136356352, 170445440, 340890880, 681781760]

約数ペア:

[(1, 681781760), (2, 340890880), (4, 170445440), (5, 136356352), (8, 85222720), (10, 68178176), (11, 61980160), (16, 42611360), (20, 34089088), (22, 30990080), (31, 21992960), (32, 21305680), (40, 17044544), (44, 15495040), (55, 12396032), (62, 10996480), (64, 10652840), (71, 9602560), (80, 8522272), (88, 7747520), (110, 6198016), (121, 5634560), (124, 5498240), (128, 5326420), (142, 4801280), (155, 4398592), (160, 4261136), (176, 3873760), (220, 3099008), (242, 2817280), (248, 2749120), (256, 2663210), (284, 2400640), (310, 2199296), (320, 2130568), (341, 1999360), (352, 1936880), (355, 1920512), (440, 1549504), (484, 1408640), (496, 1374560), (512, 1331605), (568, 1200320), (605, 1126912), (620, 1099648), (640, 1065284), (682, 999680), (704, 968440), (710, 960256), (781, 872960), (880, 774752), (968, 704320), (992, 687280), (1136, 600160), (1210, 563456), (1240, 549824), (1280, 532642), (1364, 499840), (1408, 484220), (1420, 480128), (1562, 436480), (1705, 399872), (1760, 387376), (1936, 352160), (1984, 343640), (2201, 309760), (2272, 300080), (2420, 281728), (2480, 274912), (2560, 266321), (2728, 249920), (2816, 242110), (2840, 240064), (3124, 218240), (3410, 199936), (3520, 193688), (3751, 181760), (3872, 176080), (3905, 174592), (3968, 171820), (4402, 154880), (4544, 150040), (4840, 140864), (4960, 137456), (5456, 124960), (5632, 121055), (5680, 120032), (6248, 109120), (6820, 99968), (7040, 96844), (7502, 90880), (7744, 88040), (7810, 87296), (7936, 85910), (8591, 79360), (8804, 77440), (9088, 75020), (9680, 70432), (9920, 68728), (10912, 62480), (11005, 61952), (11360, 60016), (12496, 54560), (13640, 49984), (14080, 48422), (15004, 45440), (15488, 44020), (15620, 43648), (15872, 42955), (17182, 39680), (17608, 38720), (18176, 37510), (18755, 36352), (19360, 35216), (19840, 34364), (21824, 31240), (22010, 30976), (22720, 30008), (24211, 28160), (24992, 27280)]