256466560

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1$

素因数の和:199

約数の個数: 256

約数和(自身を含む): 775526400

約数和(自身を除く): 519059840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 23, 28, 32, 35, 38, 40, 46, 56, 64, 70, 76, 80, 92, 95, 112, 115, 128, 131, 133, 140, 152, 160, 161, 184, 190, 224, 230, 262, 266, 280, 304, 320, 322, 368, 380, 437, 448, 460, 524, 532, 560, 608, 640, 644, 655, 665, 736, 760, 805, 874, 896, 917, 920, 1048, 1064, 1120, 1216, 1288, 1310, 1330, 1472, 1520, 1610, 1748, 1834, 1840, 2096, 2128, 2185, 2240, 2432, 2489, 2576, 2620, 2660, 2944, 3013, 3040, 3059, 3220, 3496, 3668, 3680, 4192, 4256, 4370, 4480, 4585, 4978, 5152, 5240, 5320, 6026, 6080, 6118, 6440, 6992, 7336, 7360, 8384, 8512, 8740, 9170, 9956, 10304, 10480, 10640, 12052, 12160, 12236, 12445, 12880, 13984, 14672, 14720, 15065, 15295, 16768, 17024, 17423, 17480, 18340, 19912, 20608, 20960, 21091, 21280, 24104, 24472, 24890, 25760, 27968, 29344, 30130, 30590, 34846, 34960, 36680, 39824, 41920, 42182, 42560, 48208, 48944, 49780, 51520, 55936, 57247, 58688, 60260, 61180, 69692, 69920, 73360, 79648, 83840, 84364, 85120, 87115, 96416, 97888, 99560, 103040, 105455, 114494, 117376, 120520, 122360, 139384, 139840, 146720, 159296, 168728, 174230, 192832, 195776, 199120, 210910, 228988, 241040, 244720, 278768, 279680, 286235, 293440, 318592, 337456, 348460, 385664, 391552, 398240, 400729, 421820, 457976, 482080, 489440, 557536, 572470, 586880, 674912, 696920, 796480, 801458, 843640, 915952, 964160, 978880, 1115072, 1144940, 1349824, 1393840, 1592960, 1602916, 1687280, 1831904, 1928320, 1957760, 2003645, 2230144, 2289880, 2699648, 2787680, 3205832, 3374560, 3663808, 4007290, 4579760, 5575360, 6411664, 6749120, 7327616, 8014580, 9159520, 11150720, 12823328, 13498240, 16029160, 18319040, 25646656, 32058320, 36638080, 51293312, 64116640, 128233280, 256466560]

約数ペア:

[(1, 256466560), (2, 128233280), (4, 64116640), (5, 51293312), (7, 36638080), (8, 32058320), (10, 25646656), (14, 18319040), (16, 16029160), (19, 13498240), (20, 12823328), (23, 11150720), (28, 9159520), (32, 8014580), (35, 7327616), (38, 6749120), (40, 6411664), (46, 5575360), (56, 4579760), (64, 4007290), (70, 3663808), (76, 3374560), (80, 3205832), (92, 2787680), (95, 2699648), (112, 2289880), (115, 2230144), (128, 2003645), (131, 1957760), (133, 1928320), (140, 1831904), (152, 1687280), (160, 1602916), (161, 1592960), (184, 1393840), (190, 1349824), (224, 1144940), (230, 1115072), (262, 978880), (266, 964160), (280, 915952), (304, 843640), (320, 801458), (322, 796480), (368, 696920), (380, 674912), (437, 586880), (448, 572470), (460, 557536), (524, 489440), (532, 482080), (560, 457976), (608, 421820), (640, 400729), (644, 398240), (655, 391552), (665, 385664), (736, 348460), (760, 337456), (805, 318592), (874, 293440), (896, 286235), (917, 279680), (920, 278768), (1048, 244720), (1064, 241040), (1120, 228988), (1216, 210910), (1288, 199120), (1310, 195776), (1330, 192832), (1472, 174230), (1520, 168728), (1610, 159296), (1748, 146720), (1834, 139840), (1840, 139384), (2096, 122360), (2128, 120520), (2185, 117376), (2240, 114494), (2432, 105455), (2489, 103040), (2576, 99560), (2620, 97888), (2660, 96416), (2944, 87115), (3013, 85120), (3040, 84364), (3059, 83840), (3220, 79648), (3496, 73360), (3668, 69920), (3680, 69692), (4192, 61180), (4256, 60260), (4370, 58688), (4480, 57247), (4585, 55936), (4978, 51520), (5152, 49780), (5240, 48944), (5320, 48208), (6026, 42560), (6080, 42182), (6118, 41920), (6440, 39824), (6992, 36680), (7336, 34960), (7360, 34846), (8384, 30590), (8512, 30130), (8740, 29344), (9170, 27968), (9956, 25760), (10304, 24890), (10480, 24472), (10640, 24104), (12052, 21280), (12160, 21091), (12236, 20960), (12445, 20608), (12880, 19912), (13984, 18340), (14672, 17480), (14720, 17423), (15065, 17024), (15295, 16768)]