208657848

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{499}}^1$

素因数の和:665

約数の個数: 128

約数和(自身を含む): 633600000

約数和(自身を除く): 424942152

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 19, 21, 24, 28, 38, 42, 56, 57, 76, 84, 114, 131, 133, 152, 168, 228, 262, 266, 393, 399, 456, 499, 524, 532, 786, 798, 917, 998, 1048, 1064, 1497, 1572, 1596, 1834, 1996, 2489, 2751, 2994, 3144, 3192, 3493, 3668, 3992, 4978, 5502, 5988, 6986, 7336, 7467, 9481, 9956, 10479, 11004, 11976, 13972, 14934, 17423, 18962, 19912, 20958, 22008, 27944, 28443, 29868, 34846, 37924, 41916, 52269, 56886, 59736, 65369, 66367, 69692, 75848, 83832, 104538, 113772, 130738, 132734, 139384, 196107, 199101, 209076, 227544, 261476, 265468, 392214, 398202, 418152, 457583, 522952, 530936, 784428, 796404, 915166, 1242011, 1372749, 1568856, 1592808, 1830332, 2484022, 2745498, 3660664, 3726033, 4968044, 5490996, 7452066, 8694077, 9936088, 10981992, 14904132, 17388154, 26082231, 29808264, 34776308, 52164462, 69552616, 104328924, 208657848]

約数ペア:

[(1, 208657848), (2, 104328924), (3, 69552616), (4, 52164462), (6, 34776308), (7, 29808264), (8, 26082231), (12, 17388154), (14, 14904132), (19, 10981992), (21, 9936088), (24, 8694077), (28, 7452066), (38, 5490996), (42, 4968044), (56, 3726033), (57, 3660664), (76, 2745498), (84, 2484022), (114, 1830332), (131, 1592808), (133, 1568856), (152, 1372749), (168, 1242011), (228, 915166), (262, 796404), (266, 784428), (393, 530936), (399, 522952), (456, 457583), (499, 418152), (524, 398202), (532, 392214), (786, 265468), (798, 261476), (917, 227544), (998, 209076), (1048, 199101), (1064, 196107), (1497, 139384), (1572, 132734), (1596, 130738), (1834, 113772), (1996, 104538), (2489, 83832), (2751, 75848), (2994, 69692), (3144, 66367), (3192, 65369), (3493, 59736), (3668, 56886), (3992, 52269), (4978, 41916), (5502, 37924), (5988, 34846), (6986, 29868), (7336, 28443), (7467, 27944), (9481, 22008), (9956, 20958), (10479, 19912), (11004, 18962), (11976, 17423), (13972, 14934)]