13360780

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{97}}^2$

素因数の和:274

約数の個数: 36

約数和(自身を含む): 28749168

約数和(自身を除く): 15388388

約数列:

[1, 2, 4, 5, 10, 20, 71, 97, 142, 194, 284, 355, 388, 485, 710, 970, 1420, 1940, 6887, 9409, 13774, 18818, 27548, 34435, 37636, 47045, 68870, 94090, 137740, 188180, 668039, 1336078, 2672156, 3340195, 6680390, 13360780]

約数ペア:

[(1, 13360780), (2, 6680390), (4, 3340195), (5, 2672156), (10, 1336078), (20, 668039), (71, 188180), (97, 137740), (142, 94090), (194, 68870), (284, 47045), (355, 37636), (388, 34435), (485, 27548), (710, 18818), (970, 13774), (1420, 9409), (1940, 6887)]