28645180

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{21377}}^1$

素因数の和:21453

約数の個数: 24

約数和(自身を含む): 61055568

約数和(自身を除く): 32410388

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 21377, 42754, 85508, 106885, 213770, 427540, 1432259, 2864518, 5729036, 7161295, 14322590, 28645180]

約数ペア:

[(1, 28645180), (2, 14322590), (4, 7161295), (5, 5729036), (10, 2864518), (20, 1432259), (67, 427540), (134, 213770), (268, 106885), (335, 85508), (670, 42754), (1340, 21377)]