203281988

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^2$

素因数の和:99

約数の個数: 162

約数和(自身を含む): 500750586

約数和(自身を除く): 297468598

約数列:

[1, 2, 4, 7, 13, 14, 17, 19, 26, 28, 34, 38, 49, 52, 68, 76, 91, 98, 119, 133, 169, 182, 196, 221, 238, 247, 266, 323, 338, 361, 364, 442, 476, 494, 532, 637, 646, 676, 722, 833, 884, 931, 988, 1183, 1274, 1292, 1444, 1547, 1666, 1729, 1862, 2261, 2366, 2527, 2548, 2873, 3094, 3211, 3332, 3458, 3724, 4199, 4522, 4693, 4732, 5054, 5746, 6137, 6188, 6422, 6916, 8281, 8398, 9044, 9386, 10108, 10829, 11492, 12103, 12274, 12844, 15827, 16562, 16796, 17689, 18772, 20111, 21658, 22477, 24206, 24548, 29393, 31654, 32851, 33124, 35378, 40222, 42959, 43316, 44954, 48412, 54587, 58786, 61009, 63308, 65702, 70756, 79781, 80444, 85918, 89908, 109174, 117572, 122018, 131404, 140777, 157339, 159562, 171836, 205751, 218348, 229957, 244036, 281554, 300713, 314678, 319124, 382109, 411502, 427063, 459914, 558467, 563108, 601426, 629356, 764218, 823004, 854126, 919828, 1037153, 1116934, 1202852, 1528436, 1708252, 2074306, 2233868, 2674763, 2989441, 3909269, 4148612, 5349526, 5978882, 7260071, 7818538, 10699052, 11957764, 14520142, 15637076, 29040284, 50820497, 101640994, 203281988]

約数ペア:

[(1, 203281988), (2, 101640994), (4, 50820497), (7, 29040284), (13, 15637076), (14, 14520142), (17, 11957764), (19, 10699052), (26, 7818538), (28, 7260071), (34, 5978882), (38, 5349526), (49, 4148612), (52, 3909269), (68, 2989441), (76, 2674763), (91, 2233868), (98, 2074306), (119, 1708252), (133, 1528436), (169, 1202852), (182, 1116934), (196, 1037153), (221, 919828), (238, 854126), (247, 823004), (266, 764218), (323, 629356), (338, 601426), (361, 563108), (364, 558467), (442, 459914), (476, 427063), (494, 411502), (532, 382109), (637, 319124), (646, 314678), (676, 300713), (722, 281554), (833, 244036), (884, 229957), (931, 218348), (988, 205751), (1183, 171836), (1274, 159562), (1292, 157339), (1444, 140777), (1547, 131404), (1666, 122018), (1729, 117572), (1862, 109174), (2261, 89908), (2366, 85918), (2527, 80444), (2548, 79781), (2873, 70756), (3094, 65702), (3211, 63308), (3332, 61009), (3458, 58786), (3724, 54587), (4199, 48412), (4522, 44954), (4693, 43316), (4732, 42959), (5054, 40222), (5746, 35378), (6137, 33124), (6188, 32851), (6422, 31654), (6916, 29393), (8281, 24548), (8398, 24206), (9044, 22477), (9386, 21658), (10108, 20111), (10829, 18772), (11492, 17689), (12103, 16796), (12274, 16562), (12844, 15827)]