19781407464

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{181}}^1\times {\mathrm{307}}^1$

素因数の和:680

約数の個数: 256

約数和(自身を含む): 61778196480

約数和(自身を除く): 41996789016

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 42, 52, 56, 78, 84, 91, 104, 156, 163, 168, 181, 182, 273, 307, 312, 326, 362, 364, 489, 543, 546, 614, 652, 724, 728, 921, 978, 1086, 1092, 1141, 1228, 1267, 1304, 1448, 1842, 1956, 2119, 2149, 2172, 2184, 2282, 2353, 2456, 2534, 3423, 3684, 3801, 3912, 3991, 4238, 4298, 4344, 4564, 4706, 5068, 6357, 6447, 6846, 7059, 7368, 7602, 7982, 8476, 8596, 9128, 9412, 10136, 11973, 12714, 12894, 13692, 14118, 14833, 15204, 15964, 16471, 16952, 17192, 18824, 23946, 25428, 25788, 27384, 27937, 28236, 29503, 29666, 30408, 31928, 32942, 44499, 47892, 49413, 50041, 50856, 51576, 55567, 55874, 56472, 59006, 59332, 65884, 83811, 88509, 88998, 95784, 98826, 100082, 111134, 111748, 118012, 118664, 131768, 150123, 166701, 167622, 177018, 177996, 197652, 200164, 206521, 222268, 223496, 236024, 300246, 333402, 335244, 350287, 354036, 355992, 383539, 388969, 395304, 400328, 413042, 444536, 600492, 619563, 650533, 666804, 670488, 700574, 708072, 722371, 767078, 777938, 826084, 1050861, 1150617, 1166907, 1200984, 1239126, 1301066, 1333608, 1401148, 1444742, 1534156, 1555876, 1652168, 1951599, 2101722, 2167113, 2301234, 2333814, 2478252, 2602132, 2684773, 2802296, 2889484, 3068312, 3111752, 3903198, 4203444, 4334226, 4553731, 4602468, 4667628, 4956504, 5056597, 5204264, 5369546, 5778968, 7806396, 8054319, 8406888, 8668452, 9057421, 9107462, 9204936, 9335256, 10113194, 10739092, 13661193, 15169791, 15612792, 16108638, 17336904, 18114842, 18214924, 20226388, 21478184, 27172263, 27322386, 30339582, 32217276, 36229684, 36429848, 40452776, 54344526, 54644772, 60679164, 63401947, 64434552, 72459368, 108689052, 109289544, 117746473, 121358328, 126803894, 190205841, 217378104, 235492946, 253607788, 353239419, 380411682, 470985892, 507215576, 706478838, 760823364, 824225311, 941971784, 1412957676, 1521646728, 1648450622, 2472675933, 2825915352, 3296901244, 4945351866, 6593802488, 9890703732, 19781407464]

約数ペア:

[(1, 19781407464), (2, 9890703732), (3, 6593802488), (4, 4945351866), (6, 3296901244), (7, 2825915352), (8, 2472675933), (12, 1648450622), (13, 1521646728), (14, 1412957676), (21, 941971784), (24, 824225311), (26, 760823364), (28, 706478838), (39, 507215576), (42, 470985892), (52, 380411682), (56, 353239419), (78, 253607788), (84, 235492946), (91, 217378104), (104, 190205841), (156, 126803894), (163, 121358328), (168, 117746473), (181, 109289544), (182, 108689052), (273, 72459368), (307, 64434552), (312, 63401947), (326, 60679164), (362, 54644772), (364, 54344526), (489, 40452776), (543, 36429848), (546, 36229684), (614, 32217276), (652, 30339582), (724, 27322386), (728, 27172263), (921, 21478184), (978, 20226388), (1086, 18214924), (1092, 18114842), (1141, 17336904), (1228, 16108638), (1267, 15612792), (1304, 15169791), (1448, 13661193), (1842, 10739092), (1956, 10113194), (2119, 9335256), (2149, 9204936), (2172, 9107462), (2184, 9057421), (2282, 8668452), (2353, 8406888), (2456, 8054319), (2534, 7806396), (3423, 5778968), (3684, 5369546), (3801, 5204264), (3912, 5056597), (3991, 4956504), (4238, 4667628), (4298, 4602468), (4344, 4553731), (4564, 4334226), (4706, 4203444), (5068, 3903198), (6357, 3111752), (6447, 3068312), (6846, 2889484), (7059, 2802296), (7368, 2684773), (7602, 2602132), (7982, 2478252), (8476, 2333814), (8596, 2301234), (9128, 2167113), (9412, 2101722), (10136, 1951599), (11973, 1652168), (12714, 1555876), (12894, 1534156), (13692, 1444742), (14118, 1401148), (14833, 1333608), (15204, 1301066), (15964, 1239126), (16471, 1200984), (16952, 1166907), (17192, 1150617), (18824, 1050861), (23946, 826084), (25428, 777938), (25788, 767078), (27384, 722371), (27937, 708072), (28236, 700574), (29503, 670488), (29666, 666804), (30408, 650533), (31928, 619563), (32942, 600492), (44499, 444536), (47892, 413042), (49413, 400328), (50041, 395304), (50856, 388969), (51576, 383539), (55567, 355992), (55874, 354036), (56472, 350287), (59006, 335244), (59332, 333402), (65884, 300246), (83811, 236024), (88509, 223496), (88998, 222268), (95784, 206521), (98826, 200164), (100082, 197652), (111134, 177996), (111748, 177018), (118012, 167622), (118664, 166701), (131768, 150123)]