19393280

素因数分解:

$2^8\times 5^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1$

素因数の和:269

約数の個数: 72

約数和(自身を含む): 47216400

約数和(自身を除く): 27823120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 128, 139, 160, 218, 256, 278, 320, 436, 545, 556, 640, 695, 872, 1090, 1112, 1280, 1390, 1744, 2180, 2224, 2780, 3488, 4360, 4448, 5560, 6976, 8720, 8896, 11120, 13952, 15151, 17440, 17792, 22240, 27904, 30302, 34880, 35584, 44480, 60604, 69760, 75755, 88960, 121208, 139520, 151510, 177920, 242416, 303020, 484832, 606040, 969664, 1212080, 1939328, 2424160, 3878656, 4848320, 9696640, 19393280]

約数ペア:

[(1, 19393280), (2, 9696640), (4, 4848320), (5, 3878656), (8, 2424160), (10, 1939328), (16, 1212080), (20, 969664), (32, 606040), (40, 484832), (64, 303020), (80, 242416), (109, 177920), (128, 151510), (139, 139520), (160, 121208), (218, 88960), (256, 75755), (278, 69760), (320, 60604), (436, 44480), (545, 35584), (556, 34880), (640, 30302), (695, 27904), (872, 22240), (1090, 17792), (1112, 17440), (1280, 15151), (1390, 13952), (1744, 11120), (2180, 8896), (2224, 8720), (2780, 6976), (3488, 5560), (4360, 4448)]