247938390

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{241}}^1$

素因数の和:355

約数の個数: 192

約数和(自身を含む): 782825472

約数和(自身を除く): 534887082

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 23, 30, 35, 42, 45, 46, 63, 69, 70, 71, 90, 105, 115, 126, 138, 142, 161, 207, 210, 213, 230, 241, 315, 322, 345, 355, 414, 426, 482, 483, 497, 630, 639, 690, 710, 723, 805, 966, 994, 1035, 1065, 1205, 1278, 1446, 1449, 1491, 1610, 1633, 1687, 2070, 2130, 2169, 2410, 2415, 2485, 2898, 2982, 3195, 3266, 3374, 3615, 4338, 4473, 4830, 4899, 4970, 5061, 5543, 6390, 7230, 7245, 7455, 8165, 8435, 8946, 9798, 10122, 10845, 11086, 11431, 14490, 14697, 14910, 15183, 16330, 16629, 16870, 17111, 21690, 22365, 22862, 24495, 25305, 27715, 29394, 30366, 33258, 34222, 34293, 38801, 44730, 48990, 49887, 50610, 51333, 55430, 57155, 68586, 73485, 75915, 77602, 83145, 85555, 99774, 102666, 102879, 114310, 116403, 119777, 146970, 151830, 153999, 166290, 171110, 171465, 194005, 205758, 232806, 239554, 249435, 256665, 307998, 342930, 349209, 359331, 388010, 393553, 498870, 513330, 514395, 582015, 598885, 698418, 718662, 769995, 787106, 1028790, 1077993, 1164030, 1180659, 1197770, 1539990, 1746045, 1796655, 1967765, 2155986, 2361318, 2754871, 3492090, 3541977, 3593310, 3935530, 5389965, 5509742, 5903295, 7083954, 8264613, 10779930, 11806590, 13774355, 16529226, 17709885, 24793839, 27548710, 35419770, 41323065, 49587678, 82646130, 123969195, 247938390]

約数ペア:

[(1, 247938390), (2, 123969195), (3, 82646130), (5, 49587678), (6, 41323065), (7, 35419770), (9, 27548710), (10, 24793839), (14, 17709885), (15, 16529226), (18, 13774355), (21, 11806590), (23, 10779930), (30, 8264613), (35, 7083954), (42, 5903295), (45, 5509742), (46, 5389965), (63, 3935530), (69, 3593310), (70, 3541977), (71, 3492090), (90, 2754871), (105, 2361318), (115, 2155986), (126, 1967765), (138, 1796655), (142, 1746045), (161, 1539990), (207, 1197770), (210, 1180659), (213, 1164030), (230, 1077993), (241, 1028790), (315, 787106), (322, 769995), (345, 718662), (355, 698418), (414, 598885), (426, 582015), (482, 514395), (483, 513330), (497, 498870), (630, 393553), (639, 388010), (690, 359331), (710, 349209), (723, 342930), (805, 307998), (966, 256665), (994, 249435), (1035, 239554), (1065, 232806), (1205, 205758), (1278, 194005), (1446, 171465), (1449, 171110), (1491, 166290), (1610, 153999), (1633, 151830), (1687, 146970), (2070, 119777), (2130, 116403), (2169, 114310), (2410, 102879), (2415, 102666), (2485, 99774), (2898, 85555), (2982, 83145), (3195, 77602), (3266, 75915), (3374, 73485), (3615, 68586), (4338, 57155), (4473, 55430), (4830, 51333), (4899, 50610), (4970, 49887), (5061, 48990), (5543, 44730), (6390, 38801), (7230, 34293), (7245, 34222), (7455, 33258), (8165, 30366), (8435, 29394), (8946, 27715), (9798, 25305), (10122, 24495), (10845, 22862), (11086, 22365), (11431, 21690), (14490, 17111), (14697, 16870), (14910, 16629), (15183, 16330)]