80247740

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{45083}}^1$

素因数の和:45181

約数の個数: 24

約数和(自身を含む): 170417520

約数和(自身を除く): 90169780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 45083, 90166, 180332, 225415, 450830, 901660, 4012387, 8024774, 16049548, 20061935, 40123870, 80247740]

約数ペア:

[(1, 80247740), (2, 40123870), (4, 20061935), (5, 16049548), (10, 8024774), (20, 4012387), (89, 901660), (178, 450830), (356, 225415), (445, 180332), (890, 90166), (1780, 45083)]