20084740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77249}}^1$

素因数の和:77271

約数の個数: 24

約数和(自身を含む): 45423000

約数和(自身を除く): 25338260

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 77249, 154498, 308996, 386245, 772490, 1004237, 1544980, 2008474, 4016948, 5021185, 10042370, 20084740]

約数ペア:

[(1, 20084740), (2, 10042370), (4, 5021185), (5, 4016948), (10, 2008474), (13, 1544980), (20, 1004237), (26, 772490), (52, 386245), (65, 308996), (130, 154498), (260, 77249)]