140721280

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{311}}^1$

素因数の和:438

約数の個数: 128

約数和(自身を含む): 389525760

約数和(自身を除く): 248804480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 101, 112, 128, 140, 160, 202, 224, 280, 311, 320, 404, 448, 505, 560, 622, 640, 707, 808, 896, 1010, 1120, 1244, 1414, 1555, 1616, 2020, 2177, 2240, 2488, 2828, 3110, 3232, 3535, 4040, 4354, 4480, 4976, 5656, 6220, 6464, 7070, 8080, 8708, 9952, 10885, 11312, 12440, 12928, 14140, 16160, 17416, 19904, 21770, 22624, 24880, 28280, 31411, 32320, 34832, 39808, 43540, 45248, 49760, 56560, 62822, 64640, 69664, 87080, 90496, 99520, 113120, 125644, 139328, 157055, 174160, 199040, 219877, 226240, 251288, 278656, 314110, 348320, 439754, 452480, 502576, 628220, 696640, 879508, 1005152, 1099385, 1256440, 1393280, 1759016, 2010304, 2198770, 2512880, 3518032, 4020608, 4397540, 5025760, 7036064, 8795080, 10051520, 14072128, 17590160, 20103040, 28144256, 35180320, 70360640, 140721280]

約数ペア:

[(1, 140721280), (2, 70360640), (4, 35180320), (5, 28144256), (7, 20103040), (8, 17590160), (10, 14072128), (14, 10051520), (16, 8795080), (20, 7036064), (28, 5025760), (32, 4397540), (35, 4020608), (40, 3518032), (56, 2512880), (64, 2198770), (70, 2010304), (80, 1759016), (101, 1393280), (112, 1256440), (128, 1099385), (140, 1005152), (160, 879508), (202, 696640), (224, 628220), (280, 502576), (311, 452480), (320, 439754), (404, 348320), (448, 314110), (505, 278656), (560, 251288), (622, 226240), (640, 219877), (707, 199040), (808, 174160), (896, 157055), (1010, 139328), (1120, 125644), (1244, 113120), (1414, 99520), (1555, 90496), (1616, 87080), (2020, 69664), (2177, 64640), (2240, 62822), (2488, 56560), (2828, 49760), (3110, 45248), (3232, 43540), (3535, 39808), (4040, 34832), (4354, 32320), (4480, 31411), (4976, 28280), (5656, 24880), (6220, 22624), (6464, 21770), (7070, 19904), (8080, 17416), (8708, 16160), (9952, 14140), (10885, 12928), (11312, 12440)]