13018960

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1493}}^1$

素因数の和:1615

約数の個数: 40

約数和(自身を含む): 30567240

約数和(自身を除く): 17548280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1493, 1744, 2180, 2986, 4360, 5972, 7465, 8720, 11944, 14930, 23888, 29860, 59720, 119440, 162737, 325474, 650948, 813685, 1301896, 1627370, 2603792, 3254740, 6509480, 13018960]

約数ペア:

[(1, 13018960), (2, 6509480), (4, 3254740), (5, 2603792), (8, 1627370), (10, 1301896), (16, 813685), (20, 650948), (40, 325474), (80, 162737), (109, 119440), (218, 59720), (436, 29860), (545, 23888), (872, 14930), (1090, 11944), (1493, 8720), (1744, 7465), (2180, 5972), (2986, 4360)]