20705451676

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{307}}^1$

素因数の和:544

約数の個数: 192

約数和(自身を含む): 47598960640

約数和(自身を除く): 26893508964

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 31, 43, 52, 62, 86, 91, 124, 139, 172, 182, 217, 278, 301, 307, 364, 403, 434, 556, 559, 602, 614, 806, 868, 973, 1118, 1204, 1228, 1333, 1612, 1807, 1946, 2149, 2236, 2666, 2821, 3614, 3892, 3913, 3991, 4298, 4309, 5332, 5642, 5977, 7228, 7826, 7982, 8596, 8618, 9331, 9517, 11284, 11954, 12649, 13201, 15652, 15964, 17236, 17329, 18662, 19034, 23908, 25298, 26402, 27937, 30163, 34658, 37324, 38068, 41839, 42673, 50596, 52804, 55874, 56017, 60326, 66619, 69316, 77701, 83678, 85346, 92407, 111748, 112034, 120652, 121303, 123721, 133238, 155402, 167356, 170692, 171613, 184814, 185287, 224068, 242606, 247442, 266476, 298711, 310804, 343226, 369628, 370574, 392119, 409231, 485212, 494884, 543907, 554749, 597422, 686452, 741148, 784238, 818462, 866047, 1087814, 1109498, 1194844, 1201291, 1297009, 1322863, 1568476, 1636924, 1732094, 1834939, 2175628, 2218996, 2402582, 2408731, 2594018, 2645726, 2864617, 3464188, 3669878, 3883243, 4805164, 4817462, 5188036, 5291452, 5320003, 5729234, 7339756, 7766486, 9260041, 9634924, 10640006, 11458468, 12844573, 15532972, 16861117, 17197219, 18520082, 21280012, 23854207, 25689146, 33722234, 34394438, 37040164, 37240021, 47708414, 51378292, 56883109, 67444468, 68788876, 74480042, 95416828, 113766218, 120380533, 148960084, 166979449, 227532436, 240761066, 333958898, 398181763, 481522132, 667917796, 739480417, 796363526, 1478960834, 1592727052, 2957921668, 5176362919, 10352725838, 20705451676]

約数ペア:

[(1, 20705451676), (2, 10352725838), (4, 5176362919), (7, 2957921668), (13, 1592727052), (14, 1478960834), (26, 796363526), (28, 739480417), (31, 667917796), (43, 481522132), (52, 398181763), (62, 333958898), (86, 240761066), (91, 227532436), (124, 166979449), (139, 148960084), (172, 120380533), (182, 113766218), (217, 95416828), (278, 74480042), (301, 68788876), (307, 67444468), (364, 56883109), (403, 51378292), (434, 47708414), (556, 37240021), (559, 37040164), (602, 34394438), (614, 33722234), (806, 25689146), (868, 23854207), (973, 21280012), (1118, 18520082), (1204, 17197219), (1228, 16861117), (1333, 15532972), (1612, 12844573), (1807, 11458468), (1946, 10640006), (2149, 9634924), (2236, 9260041), (2666, 7766486), (2821, 7339756), (3614, 5729234), (3892, 5320003), (3913, 5291452), (3991, 5188036), (4298, 4817462), (4309, 4805164), (5332, 3883243), (5642, 3669878), (5977, 3464188), (7228, 2864617), (7826, 2645726), (7982, 2594018), (8596, 2408731), (8618, 2402582), (9331, 2218996), (9517, 2175628), (11284, 1834939), (11954, 1732094), (12649, 1636924), (13201, 1568476), (15652, 1322863), (15964, 1297009), (17236, 1201291), (17329, 1194844), (18662, 1109498), (19034, 1087814), (23908, 866047), (25298, 818462), (26402, 784238), (27937, 741148), (30163, 686452), (34658, 597422), (37324, 554749), (38068, 543907), (41839, 494884), (42673, 485212), (50596, 409231), (52804, 392119), (55874, 370574), (56017, 369628), (60326, 343226), (66619, 310804), (69316, 298711), (77701, 266476), (83678, 247442), (85346, 242606), (92407, 224068), (111748, 185287), (112034, 184814), (120652, 171613), (121303, 170692), (123721, 167356), (133238, 155402)]