28478042

素因数分解:

$2^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{1151}}^1$

素因数の和:1381

約数の個数: 16

約数和(自身を含む): 43545600

約数和(自身を除く): 15067558

約数列:

[1, 2, 89, 139, 178, 278, 1151, 2302, 12371, 24742, 102439, 159989, 204878, 319978, 14239021, 28478042]

約数ペア:

[(1, 28478042), (2, 14239021), (89, 319978), (139, 204878), (178, 159989), (278, 102439), (1151, 24742), (2302, 12371)]