20724240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{86351}}^1$

素因数の和:86367

約数の個数: 40

約数和(自身を含む): 64245888

約数和(自身を除く): 43521648

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 86351, 172702, 259053, 345404, 431755, 518106, 690808, 863510, 1036212, 1295265, 1381616, 1727020, 2072424, 2590530, 3454040, 4144848, 5181060, 6908080, 10362120, 20724240]

約数ペア:

[(1, 20724240), (2, 10362120), (3, 6908080), (4, 5181060), (5, 4144848), (6, 3454040), (8, 2590530), (10, 2072424), (12, 1727020), (15, 1381616), (16, 1295265), (20, 1036212), (24, 863510), (30, 690808), (40, 518106), (48, 431755), (60, 345404), (80, 259053), (120, 172702), (240, 86351)]