138736640

素因数分解:

$2^{10}\times 5^1\times 7^3\times {\mathrm{79}}^1$

素因数の和:125

約数の個数: 176

約数和(自身を含む): 393024000

約数和(自身を除く): 254287360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 79, 80, 98, 112, 128, 140, 158, 160, 196, 224, 245, 256, 280, 316, 320, 343, 392, 395, 448, 490, 512, 553, 560, 632, 640, 686, 784, 790, 896, 980, 1024, 1106, 1120, 1264, 1280, 1372, 1568, 1580, 1715, 1792, 1960, 2212, 2240, 2528, 2560, 2744, 2765, 3136, 3160, 3430, 3584, 3871, 3920, 4424, 4480, 5056, 5120, 5488, 5530, 6272, 6320, 6860, 7168, 7742, 7840, 8848, 8960, 10112, 10976, 11060, 12544, 12640, 13720, 15484, 15680, 17696, 17920, 19355, 20224, 21952, 22120, 25088, 25280, 27097, 27440, 30968, 31360, 35392, 35840, 38710, 40448, 43904, 44240, 50176, 50560, 54194, 54880, 61936, 62720, 70784, 77420, 80896, 87808, 88480, 101120, 108388, 109760, 123872, 125440, 135485, 141568, 154840, 175616, 176960, 202240, 216776, 219520, 247744, 250880, 270970, 283136, 309680, 351232, 353920, 404480, 433552, 439040, 495488, 541940, 566272, 619360, 707840, 867104, 878080, 990976, 1083880, 1238720, 1415680, 1734208, 1756160, 1981952, 2167760, 2477440, 2831360, 3468416, 3963904, 4335520, 4954880, 6936832, 8671040, 9909760, 13873664, 17342080, 19819520, 27747328, 34684160, 69368320, 138736640]

約数ペア:

[(1, 138736640), (2, 69368320), (4, 34684160), (5, 27747328), (7, 19819520), (8, 17342080), (10, 13873664), (14, 9909760), (16, 8671040), (20, 6936832), (28, 4954880), (32, 4335520), (35, 3963904), (40, 3468416), (49, 2831360), (56, 2477440), (64, 2167760), (70, 1981952), (79, 1756160), (80, 1734208), (98, 1415680), (112, 1238720), (128, 1083880), (140, 990976), (158, 878080), (160, 867104), (196, 707840), (224, 619360), (245, 566272), (256, 541940), (280, 495488), (316, 439040), (320, 433552), (343, 404480), (392, 353920), (395, 351232), (448, 309680), (490, 283136), (512, 270970), (553, 250880), (560, 247744), (632, 219520), (640, 216776), (686, 202240), (784, 176960), (790, 175616), (896, 154840), (980, 141568), (1024, 135485), (1106, 125440), (1120, 123872), (1264, 109760), (1280, 108388), (1372, 101120), (1568, 88480), (1580, 87808), (1715, 80896), (1792, 77420), (1960, 70784), (2212, 62720), (2240, 61936), (2528, 54880), (2560, 54194), (2744, 50560), (2765, 50176), (3136, 44240), (3160, 43904), (3430, 40448), (3584, 38710), (3871, 35840), (3920, 35392), (4424, 31360), (4480, 30968), (5056, 27440), (5120, 27097), (5488, 25280), (5530, 25088), (6272, 22120), (6320, 21952), (6860, 20224), (7168, 19355), (7742, 17920), (7840, 17696), (8848, 15680), (8960, 15484), (10112, 13720), (10976, 12640), (11060, 12544)]