180240620

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{183919}}^1$

素因数の和:183942

約数の個数: 36

約数和(自身を含む): 440304480

約数和(自身を除く): 260063860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 183919, 367838, 735676, 919595, 1287433, 1839190, 2574866, 3678380, 5149732, 6437165, 9012031, 12874330, 18024062, 25748660, 36048124, 45060155, 90120310, 180240620]

約数ペア:

[(1, 180240620), (2, 90120310), (4, 45060155), (5, 36048124), (7, 25748660), (10, 18024062), (14, 12874330), (20, 9012031), (28, 6437165), (35, 5149732), (49, 3678380), (70, 2574866), (98, 1839190), (140, 1287433), (196, 919595), (245, 735676), (490, 367838), (980, 183919)]