20789439232

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{701}}^1$

素因数の和:886

約数の個数: 144

約数和(自身を含む): 44493007104

約数和(自身を除く): 23703567872

約数列:

[1, 2, 4, 8, 16, 31, 32, 37, 62, 64, 74, 101, 124, 128, 148, 202, 248, 256, 296, 404, 496, 592, 701, 808, 992, 1147, 1184, 1402, 1616, 1984, 2294, 2368, 2804, 3131, 3232, 3737, 3968, 4588, 4736, 5608, 6262, 6464, 7474, 7936, 9176, 9472, 11216, 12524, 12928, 14948, 18352, 21731, 22432, 25048, 25856, 25937, 29896, 36704, 43462, 44864, 50096, 51874, 59792, 70801, 73408, 86924, 89728, 100192, 103748, 115847, 119584, 141602, 146816, 173848, 179456, 200384, 207496, 231694, 239168, 283204, 293632, 347696, 400768, 414992, 463388, 478336, 566408, 695392, 801536, 804047, 829984, 926776, 956672, 1132816, 1390784, 1608094, 1659968, 1853552, 2194831, 2265632, 2619637, 2781568, 3216188, 3319936, 3707104, 4389662, 4531264, 5239274, 5563136, 6432376, 6639872, 7414208, 8779324, 9062528, 10478548, 12864752, 14828416, 17558648, 18125056, 20957096, 25729504, 29656832, 35117296, 41914192, 51459008, 70234592, 81208747, 83828384, 102918016, 140469184, 162417494, 167656768, 205836032, 280938368, 324834988, 335313536, 561876736, 649669976, 670627072, 1299339952, 2598679904, 5197359808, 10394719616, 20789439232]

約数ペア:

[(1, 20789439232), (2, 10394719616), (4, 5197359808), (8, 2598679904), (16, 1299339952), (31, 670627072), (32, 649669976), (37, 561876736), (62, 335313536), (64, 324834988), (74, 280938368), (101, 205836032), (124, 167656768), (128, 162417494), (148, 140469184), (202, 102918016), (248, 83828384), (256, 81208747), (296, 70234592), (404, 51459008), (496, 41914192), (592, 35117296), (701, 29656832), (808, 25729504), (992, 20957096), (1147, 18125056), (1184, 17558648), (1402, 14828416), (1616, 12864752), (1984, 10478548), (2294, 9062528), (2368, 8779324), (2804, 7414208), (3131, 6639872), (3232, 6432376), (3737, 5563136), (3968, 5239274), (4588, 4531264), (4736, 4389662), (5608, 3707104), (6262, 3319936), (6464, 3216188), (7474, 2781568), (7936, 2619637), (9176, 2265632), (9472, 2194831), (11216, 1853552), (12524, 1659968), (12928, 1608094), (14948, 1390784), (18352, 1132816), (21731, 956672), (22432, 926776), (25048, 829984), (25856, 804047), (25937, 801536), (29896, 695392), (36704, 566408), (43462, 478336), (44864, 463388), (50096, 414992), (51874, 400768), (59792, 347696), (70801, 293632), (73408, 283204), (86924, 239168), (89728, 231694), (100192, 207496), (103748, 200384), (115847, 179456), (119584, 173848), (141602, 146816)]