28008140

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{6637}}^1$

素因数の和:6857

約数の個数: 24

約数和(自身を含む): 59104752

約数和(自身を除く): 31096612

約数列:

[1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110, 4220, 6637, 13274, 26548, 33185, 66370, 132740, 1400407, 2800814, 5601628, 7002035, 14004070, 28008140]

約数ペア:

[(1, 28008140), (2, 14004070), (4, 7002035), (5, 5601628), (10, 2800814), (20, 1400407), (211, 132740), (422, 66370), (844, 33185), (1055, 26548), (2110, 13274), (4220, 6637)]