638049258

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{887}}^1$

素因数の和:1089

約数の個数: 128

約数和(自身を含む): 1779978240

約数和(自身を除く): 1141928982

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 27, 33, 42, 54, 63, 66, 77, 99, 126, 154, 173, 189, 198, 231, 297, 346, 378, 462, 519, 594, 693, 887, 1038, 1211, 1386, 1557, 1774, 1903, 2079, 2422, 2661, 3114, 3633, 3806, 4158, 4671, 5322, 5709, 6209, 7266, 7983, 9342, 9757, 10899, 11418, 12418, 13321, 15966, 17127, 18627, 19514, 21798, 23949, 26642, 29271, 32697, 34254, 37254, 39963, 47898, 51381, 55881, 58542, 65394, 68299, 79926, 87813, 102762, 111762, 119889, 136598, 153451, 167643, 175626, 204897, 239778, 263439, 306902, 335286, 359667, 409794, 460353, 526878, 614691, 719334, 920706, 1074157, 1229382, 1381059, 1687961, 1844073, 2148314, 2762118, 3222471, 3375922, 3688146, 4143177, 5063883, 6444942, 8286354, 9667413, 10127766, 11815727, 15191649, 19334826, 23631454, 29002239, 30383298, 35447181, 45574947, 58004478, 70894362, 91149894, 106341543, 212683086, 319024629, 638049258]

約数ペア:

[(1, 638049258), (2, 319024629), (3, 212683086), (6, 106341543), (7, 91149894), (9, 70894362), (11, 58004478), (14, 45574947), (18, 35447181), (21, 30383298), (22, 29002239), (27, 23631454), (33, 19334826), (42, 15191649), (54, 11815727), (63, 10127766), (66, 9667413), (77, 8286354), (99, 6444942), (126, 5063883), (154, 4143177), (173, 3688146), (189, 3375922), (198, 3222471), (231, 2762118), (297, 2148314), (346, 1844073), (378, 1687961), (462, 1381059), (519, 1229382), (594, 1074157), (693, 920706), (887, 719334), (1038, 614691), (1211, 526878), (1386, 460353), (1557, 409794), (1774, 359667), (1903, 335286), (2079, 306902), (2422, 263439), (2661, 239778), (3114, 204897), (3633, 175626), (3806, 167643), (4158, 153451), (4671, 136598), (5322, 119889), (5709, 111762), (6209, 102762), (7266, 87813), (7983, 79926), (9342, 68299), (9757, 65394), (10899, 58542), (11418, 55881), (12418, 51381), (13321, 47898), (15966, 39963), (17127, 37254), (18627, 34254), (19514, 32697), (21798, 29271), (23949, 26642)]