279856640

素因数分解:

$2^9\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{97}}^1$

素因数の和:157

約数の個数: 240

約数和(自身を含む): 822884832

約数和(自身を除く): 543028192

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 49, 56, 64, 70, 80, 92, 97, 98, 112, 115, 128, 140, 160, 161, 184, 194, 196, 224, 230, 245, 256, 280, 320, 322, 368, 388, 392, 448, 460, 485, 490, 512, 560, 640, 644, 679, 736, 776, 784, 805, 896, 920, 970, 980, 1120, 1127, 1280, 1288, 1358, 1472, 1552, 1568, 1610, 1792, 1840, 1940, 1960, 2231, 2240, 2254, 2560, 2576, 2716, 2944, 3104, 3136, 3220, 3395, 3584, 3680, 3880, 3920, 4462, 4480, 4508, 4753, 5152, 5432, 5635, 5888, 6208, 6272, 6440, 6790, 7360, 7760, 7840, 8924, 8960, 9016, 9506, 10304, 10864, 11155, 11270, 11776, 12416, 12544, 12880, 13580, 14720, 15520, 15617, 15680, 17848, 17920, 18032, 19012, 20608, 21728, 22310, 22540, 23765, 24832, 25088, 25760, 27160, 29440, 31040, 31234, 31360, 35696, 36064, 38024, 41216, 43456, 44620, 45080, 47530, 49664, 51520, 54320, 58880, 62080, 62468, 62720, 71392, 72128, 76048, 78085, 82432, 86912, 89240, 90160, 95060, 103040, 108640, 109319, 124160, 124936, 125440, 142784, 144256, 152096, 156170, 173824, 178480, 180320, 190120, 206080, 217280, 218638, 248320, 249872, 285568, 288512, 304192, 312340, 347648, 356960, 360640, 380240, 412160, 434560, 437276, 499744, 546595, 571136, 577024, 608384, 624680, 713920, 721280, 760480, 869120, 874552, 999488, 1093190, 1142272, 1216768, 1249360, 1427840, 1442560, 1520960, 1738240, 1749104, 1998976, 2186380, 2433536, 2498720, 2855680, 2885120, 3041920, 3498208, 3997952, 4372760, 4997440, 5711360, 6083840, 6996416, 7995904, 8745520, 9994880, 12167680, 13992832, 17491040, 19989760, 27985664, 34982080, 39979520, 55971328, 69964160, 139928320, 279856640]

約数ペア:

[(1, 279856640), (2, 139928320), (4, 69964160), (5, 55971328), (7, 39979520), (8, 34982080), (10, 27985664), (14, 19989760), (16, 17491040), (20, 13992832), (23, 12167680), (28, 9994880), (32, 8745520), (35, 7995904), (40, 6996416), (46, 6083840), (49, 5711360), (56, 4997440), (64, 4372760), (70, 3997952), (80, 3498208), (92, 3041920), (97, 2885120), (98, 2855680), (112, 2498720), (115, 2433536), (128, 2186380), (140, 1998976), (160, 1749104), (161, 1738240), (184, 1520960), (194, 1442560), (196, 1427840), (224, 1249360), (230, 1216768), (245, 1142272), (256, 1093190), (280, 999488), (320, 874552), (322, 869120), (368, 760480), (388, 721280), (392, 713920), (448, 624680), (460, 608384), (485, 577024), (490, 571136), (512, 546595), (560, 499744), (640, 437276), (644, 434560), (679, 412160), (736, 380240), (776, 360640), (784, 356960), (805, 347648), (896, 312340), (920, 304192), (970, 288512), (980, 285568), (1120, 249872), (1127, 248320), (1280, 218638), (1288, 217280), (1358, 206080), (1472, 190120), (1552, 180320), (1568, 178480), (1610, 173824), (1792, 156170), (1840, 152096), (1940, 144256), (1960, 142784), (2231, 125440), (2240, 124936), (2254, 124160), (2560, 109319), (2576, 108640), (2716, 103040), (2944, 95060), (3104, 90160), (3136, 89240), (3220, 86912), (3395, 82432), (3584, 78085), (3680, 76048), (3880, 72128), (3920, 71392), (4462, 62720), (4480, 62468), (4508, 62080), (4753, 58880), (5152, 54320), (5432, 51520), (5635, 49664), (5888, 47530), (6208, 45080), (6272, 44620), (6440, 43456), (6790, 41216), (7360, 38024), (7760, 36064), (7840, 35696), (8924, 31360), (8960, 31234), (9016, 31040), (9506, 29440), (10304, 27160), (10864, 25760), (11155, 25088), (11270, 24832), (11776, 23765), (12416, 22540), (12544, 22310), (12880, 21728), (13580, 20608), (14720, 19012), (15520, 18032), (15617, 17920), (15680, 17848)]