257211864

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1061}}^1$

素因数の和:1130

約数の個数: 192

約数和(自身を含む): 881375040

約数和(自身を除く): 624163176

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 18, 21, 24, 26, 28, 36, 37, 39, 42, 52, 56, 63, 72, 74, 78, 84, 91, 104, 111, 117, 126, 148, 156, 168, 182, 222, 234, 252, 259, 273, 296, 312, 333, 364, 444, 468, 481, 504, 518, 546, 666, 728, 777, 819, 888, 936, 962, 1036, 1061, 1092, 1332, 1443, 1554, 1638, 1924, 2072, 2122, 2184, 2331, 2664, 2886, 3108, 3183, 3276, 3367, 3848, 4244, 4329, 4662, 5772, 6216, 6366, 6552, 6734, 7427, 8488, 8658, 9324, 9549, 10101, 11544, 12732, 13468, 13793, 14854, 17316, 18648, 19098, 20202, 22281, 25464, 26936, 27586, 29708, 30303, 34632, 38196, 39257, 40404, 41379, 44562, 55172, 59416, 60606, 66843, 76392, 78514, 80808, 82758, 89124, 96551, 110344, 117771, 121212, 124137, 133686, 157028, 165516, 178248, 193102, 235542, 242424, 248274, 267372, 274799, 289653, 314056, 331032, 353313, 386204, 471084, 496548, 510341, 534744, 549598, 579306, 706626, 772408, 824397, 868959, 942168, 993096, 1020682, 1099196, 1158612, 1413252, 1531023, 1648794, 1737918, 2041364, 2198392, 2317224, 2473191, 2826504, 3062046, 3297588, 3475836, 3572387, 4082728, 4593069, 4946382, 6124092, 6595176, 6951672, 7144774, 9186138, 9892764, 10717161, 12248184, 14289548, 18372276, 19785528, 21434322, 28579096, 32151483, 36744552, 42868644, 64302966, 85737288, 128605932, 257211864]

約数ペア:

[(1, 257211864), (2, 128605932), (3, 85737288), (4, 64302966), (6, 42868644), (7, 36744552), (8, 32151483), (9, 28579096), (12, 21434322), (13, 19785528), (14, 18372276), (18, 14289548), (21, 12248184), (24, 10717161), (26, 9892764), (28, 9186138), (36, 7144774), (37, 6951672), (39, 6595176), (42, 6124092), (52, 4946382), (56, 4593069), (63, 4082728), (72, 3572387), (74, 3475836), (78, 3297588), (84, 3062046), (91, 2826504), (104, 2473191), (111, 2317224), (117, 2198392), (126, 2041364), (148, 1737918), (156, 1648794), (168, 1531023), (182, 1413252), (222, 1158612), (234, 1099196), (252, 1020682), (259, 993096), (273, 942168), (296, 868959), (312, 824397), (333, 772408), (364, 706626), (444, 579306), (468, 549598), (481, 534744), (504, 510341), (518, 496548), (546, 471084), (666, 386204), (728, 353313), (777, 331032), (819, 314056), (888, 289653), (936, 274799), (962, 267372), (1036, 248274), (1061, 242424), (1092, 235542), (1332, 193102), (1443, 178248), (1554, 165516), (1638, 157028), (1924, 133686), (2072, 124137), (2122, 121212), (2184, 117771), (2331, 110344), (2664, 96551), (2886, 89124), (3108, 82758), (3183, 80808), (3276, 78514), (3367, 76392), (3848, 66843), (4244, 60606), (4329, 59416), (4662, 55172), (5772, 44562), (6216, 41379), (6366, 40404), (6552, 39257), (6734, 38196), (7427, 34632), (8488, 30303), (8658, 29708), (9324, 27586), (9549, 26936), (10101, 25464), (11544, 22281), (12732, 20202), (13468, 19098), (13793, 18648), (14854, 17316)]