381086720

素因数分解:

$2^{10}\times 5^1\times 7^4\times {\mathrm{31}}^1$

素因数の和:84

約数の個数: 220

約数和(自身を含む): 1100860224

約数和(自身を除く): 719773504

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 49, 56, 62, 64, 70, 80, 98, 112, 124, 128, 140, 155, 160, 196, 217, 224, 245, 248, 256, 280, 310, 320, 343, 392, 434, 448, 490, 496, 512, 560, 620, 640, 686, 784, 868, 896, 980, 992, 1024, 1085, 1120, 1240, 1280, 1372, 1519, 1568, 1715, 1736, 1792, 1960, 1984, 2170, 2240, 2401, 2480, 2560, 2744, 3038, 3136, 3430, 3472, 3584, 3920, 3968, 4340, 4480, 4802, 4960, 5120, 5488, 6076, 6272, 6860, 6944, 7168, 7595, 7840, 7936, 8680, 8960, 9604, 9920, 10633, 10976, 12005, 12152, 12544, 13720, 13888, 15190, 15680, 15872, 17360, 17920, 19208, 19840, 21266, 21952, 24010, 24304, 25088, 27440, 27776, 30380, 31360, 31744, 34720, 35840, 38416, 39680, 42532, 43904, 48020, 48608, 50176, 53165, 54880, 55552, 60760, 62720, 69440, 74431, 76832, 79360, 85064, 87808, 96040, 97216, 106330, 109760, 111104, 121520, 125440, 138880, 148862, 153664, 158720, 170128, 175616, 192080, 194432, 212660, 219520, 222208, 243040, 250880, 277760, 297724, 307328, 340256, 351232, 372155, 384160, 388864, 425320, 439040, 486080, 555520, 595448, 614656, 680512, 744310, 768320, 777728, 850640, 878080, 972160, 1111040, 1190896, 1229312, 1361024, 1488620, 1536640, 1555456, 1701280, 1756160, 1944320, 2381792, 2458624, 2722048, 2977240, 3073280, 3402560, 3888640, 4763584, 5444096, 5954480, 6146560, 6805120, 7777280, 9527168, 10888192, 11908960, 12293120, 13610240, 19054336, 23817920, 27220480, 38108672, 47635840, 54440960, 76217344, 95271680, 190543360, 381086720]

約数ペア:

[(1, 381086720), (2, 190543360), (4, 95271680), (5, 76217344), (7, 54440960), (8, 47635840), (10, 38108672), (14, 27220480), (16, 23817920), (20, 19054336), (28, 13610240), (31, 12293120), (32, 11908960), (35, 10888192), (40, 9527168), (49, 7777280), (56, 6805120), (62, 6146560), (64, 5954480), (70, 5444096), (80, 4763584), (98, 3888640), (112, 3402560), (124, 3073280), (128, 2977240), (140, 2722048), (155, 2458624), (160, 2381792), (196, 1944320), (217, 1756160), (224, 1701280), (245, 1555456), (248, 1536640), (256, 1488620), (280, 1361024), (310, 1229312), (320, 1190896), (343, 1111040), (392, 972160), (434, 878080), (448, 850640), (490, 777728), (496, 768320), (512, 744310), (560, 680512), (620, 614656), (640, 595448), (686, 555520), (784, 486080), (868, 439040), (896, 425320), (980, 388864), (992, 384160), (1024, 372155), (1085, 351232), (1120, 340256), (1240, 307328), (1280, 297724), (1372, 277760), (1519, 250880), (1568, 243040), (1715, 222208), (1736, 219520), (1792, 212660), (1960, 194432), (1984, 192080), (2170, 175616), (2240, 170128), (2401, 158720), (2480, 153664), (2560, 148862), (2744, 138880), (3038, 125440), (3136, 121520), (3430, 111104), (3472, 109760), (3584, 106330), (3920, 97216), (3968, 96040), (4340, 87808), (4480, 85064), (4802, 79360), (4960, 76832), (5120, 74431), (5488, 69440), (6076, 62720), (6272, 60760), (6860, 55552), (6944, 54880), (7168, 53165), (7595, 50176), (7840, 48608), (7936, 48020), (8680, 43904), (8960, 42532), (9604, 39680), (9920, 38416), (10633, 35840), (10976, 34720), (12005, 31744), (12152, 31360), (12544, 30380), (13720, 27776), (13888, 27440), (15190, 25088), (15680, 24304), (15872, 24010), (17360, 21952), (17920, 21266), (19208, 19840)]