28191280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{27107}}^1$

素因数の和:27133

約数の個数: 40

約数和(自身を含む): 70589232

約数和(自身を除く): 42397952

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 27107, 54214, 108428, 135535, 216856, 271070, 352391, 433712, 542140, 704782, 1084280, 1409564, 1761955, 2168560, 2819128, 3523910, 5638256, 7047820, 14095640, 28191280]

約数ペア:

[(1, 28191280), (2, 14095640), (4, 7047820), (5, 5638256), (8, 3523910), (10, 2819128), (13, 2168560), (16, 1761955), (20, 1409564), (26, 1084280), (40, 704782), (52, 542140), (65, 433712), (80, 352391), (104, 271070), (130, 216856), (208, 135535), (260, 108428), (520, 54214), (1040, 27107)]